Huron-Manistee National Forests
NWS Gaylord Area of Responsibility
.DISCUSSION...Showers and thunderstorms are expected to sweep across
Michigan's Northern Lower Peninsula mainly between 4 to 10pm this
evening. While the majority of areas can expect rainfall totals
between a few tenths to a half inch, locations south of Grand
Traverse Bay could observe QPF well over an inch. Surface high
pressure returns precipitation free weather this Wednesday and
Thursday followed by additional chances of showers and storms this
Friday.
Presque Isle...Alpena...Alcona...Iosco and Arenac
Counties...including Eastern Huron NF-
241 PM EDT Tue Aug 18 2026
.TONIGHT...
Sky/Weather.........Mostly cloudy (55-65 percent). Rain showers
likely and scattered thunderstorms until 2400,
then chance of rain showers and isolated
thunderstorms. Patchy fog after 2400.
Min Temperature.....55-60...except 62-67 near the coast.
24 HR Trend......1 degree cooler.
Max Humidity........89-94 percent...except 76-81 percent along the
coast.
24 HR Trend......3 percent wetter.
20-Foot Winds.......Northwest winds around 5 mph in the evening
becoming light. Gusts up to 20 mph.
Vent Rate...........Poor (30).
Mixing Height.......500 ft agl.
Transport Winds.....Northwest 6 to 9 mph.
Pcpn Amount......... 0.04- 0.53 in.
Chance of Thunder...34 percent.
.WEDNESDAY...
Sky/Weather.........Mostly sunny (30-40 percent). Chance of rain
showers until 1200.
Max Temperature.....76-81...except 68-73 near the coast.
24 HR Trend......5 degrees cooler.
Min Humidity........34-39 percent.
24 HR Trend......11 percent drier.
20-Foot Winds.......Northwest winds around 5 mph with occasional
gusts up to 18 mph.
Vent Rate...........Excellent (690).
Mixing Height.......6700 ft agl.
Transport Winds.....Northwest 6 to 12 mph.
Pcpn Amount.........None to 0.03 in .
Chance of Thunder...3 percent.
.WEDNESDAY NIGHT...
Sky/Weather.........Partly cloudy (30-40 percent).
Min Temperature.....49-54...except 58-63 near the coast.
24 HR Trend......9 degrees cooler.
Max Humidity........91-96 percent...except 75-80 percent along the
coast.
24 HR Trend......3 percent wetter.
20-Foot Winds.......North winds around 5 mph in the evening
becoming light. Gusts up to 20 mph.
Vent Rate...........Poor (16).
Mixing Height.......400 ft agl.
Transport Winds.....North around 6 mph.
Pcpn Amount.........None.
Chance of Thunder...3 percent.
.THURSDAY...
Sky/Weather.........Sunny (20-30 percent).
Max Temperature.....77-82...except 67-72 near the coast.
24 HR Trend......1 degree warmer.
Min Humidity........35-40 percent.
24 HR Trend......1 percent drier...except 4 percent wetter along
the coast.
20-Foot Winds.......Light winds becoming south around 5 mph in the
afternoon.
Vent Rate...........Good (574).
Mixing Height.......6500 ft agl.
Transport Winds.....West 6 to 9 mph.
Pcpn Amount.........None.
Chance of Thunder...1 percent.
$$
Crawford...Oscoda...Roscommon...Ogemaw and Gladwin
Counties...including Western Huron NF-
241 PM EDT Tue Aug 18 2026
.TONIGHT...
Sky/Weather.........Mostly cloudy (55-65 percent). Scattered
thunderstorms until 2400. Rain showers likely.
Isolated thunderstorms after 2400. Patchy fog
after 2400.
Min Temperature.....56-61.
24 HR Trend......1 degree warmer.
Max Humidity........90-95 percent.
24 HR Trend......2 percent wetter.
20-Foot Winds.......West winds around 5 mph in the evening becoming
light. Gusts up to 20 mph.
Vent Rate...........Poor (22).
Mixing Height.......500 ft agl.
Transport Winds.....West around 12 mph shifting to the north around
6 mph after midnight.
Pcpn Amount......... 0.18- 0.61 in.
Chance of Thunder...36 percent.
.WEDNESDAY...
Sky/Weather.........Mostly sunny (25-35 percent). Slight chance of
rain showers until 1200.
Max Temperature.....75-80.
24 HR Trend......4 degrees cooler.
Min Humidity........34-39 percent.
24 HR Trend......11 percent drier.
20-Foot Winds.......Light winds becoming northwest around 5 mph in
the afternoon. Gusts up to 20 mph.
Vent Rate...........Excellent (724).
Mixing Height.......7000 ft agl.
Transport Winds.....North around 6 mph shifting to the northwest
around 12 mph in the afternoon.
Pcpn Amount.........None to 0.03 in .
Chance of Thunder...3 percent.
.WEDNESDAY NIGHT...
Sky/Weather.........Mostly clear (15-25 percent).
Min Temperature.....48-53.
24 HR Trend......9 degrees cooler.
Max Humidity........89-94 percent.
24 HR Trend......6 percent wetter.
20-Foot Winds.......Northwest winds around 5 mph in the evening
becoming light.
Vent Rate...........Poor (12).
Mixing Height.......400 ft agl.
Transport Winds.....North around 9 mph shifting to the east around
6 mph after midnight.
Pcpn Amount.........None.
Chance of Thunder...2 percent.
.THURSDAY...
Sky/Weather.........Sunny (20-30 percent).
Max Temperature.....78-83.
24 HR Trend......2 degrees warmer.
Min Humidity........34-39 percent.
24 HR Trend......1 percent drier.
20-Foot Winds.......Light winds becoming west around 5 mph in the
afternoon. Gusts up to 20 mph.
Vent Rate...........Excellent (785).
Mixing Height.......7900 ft agl.
Transport Winds.....Southwest around 6 mph shifting to the west
around 12 mph in the afternoon.
Pcpn Amount.........None.
Chance of Thunder...1 percent.
$$
Manistee...Wexford and Missaukee Counties...Including the
northern quarter of Manistee NF-
241 PM EDT Tue Aug 18 2026
.TONIGHT...
Sky/Weather.........Mostly cloudy (60-70 percent). Rain showers
likely and scattered thunderstorms until 2400,
then chance of rain showers and isolated
thunderstorms. Patchy fog after 2400.
Min Temperature.....56-61.
24 HR Trend......2 degrees cooler.
Max Humidity........90-95 percent.
24 HR Trend......10 percent drier...except 4 percent drier along
the coast.
20-Foot Winds.......West winds around 5 mph in the evening becoming
light. Gusts up to 25 mph.
Vent Rate...........Poor (23).
Mixing Height.......500 ft agl.
Transport Winds.....Southwest around 9 mph shifting to the north
around 6 mph after midnight.
Pcpn Amount......... 0.24- 0.70 in.
Chance of Thunder...42 percent.
.WEDNESDAY...
Sky/Weather.........Mostly sunny (30-40 percent).
Max Temperature.....74-79.
24 HR Trend......4 degrees cooler.
Min Humidity........35-40 percent.
24 HR Trend......10 percent drier...except 17 percent drier
along the coast.
20-Foot Winds.......Light winds becoming northwest around 5 mph in
the afternoon. Gusts up to 20 mph.
Vent Rate...........Excellent (648).
Mixing Height.......6400 ft agl.
Transport Winds.....North around 6 mph shifting to the northwest
around 12 mph in the afternoon.
Pcpn Amount.........None to 0.02 in .
Chance of Thunder...2 percent.
.WEDNESDAY NIGHT...
Sky/Weather.........Mostly clear (10-20 percent).
Min Temperature.....50-55.
24 HR Trend......7 degrees cooler.
Max Humidity........85-90 percent.
24 HR Trend......1 percent drier.
20-Foot Winds.......North winds around 5 mph in the evening
becoming light.
Vent Rate...........Poor (16).
Mixing Height.......400 ft agl.
Transport Winds.....North around 9 mph shifting to the southeast
around 6 mph after midnight.
Pcpn Amount.........None.
Chance of Thunder...0 percent.
.THURSDAY...
Sky/Weather.........Sunny (15-25 percent).
Max Temperature.....77-82.
24 HR Trend......2 degrees warmer.
Min Humidity........34-39 percent.
24 HR Trend......3 percent drier...except 2 percent wetter along
the coast.
20-Foot Winds.......Light winds becoming west around 5 mph in the
afternoon. Gusts up to 20 mph.
Vent Rate...........Excellent (752).
Mixing Height.......7400 ft agl.
Transport Winds.....South around 9 mph shifting to the west around
12 mph in the afternoon.
Pcpn Amount.........None.
Chance of Thunder...1 percent.
EXTENDED FORECAST
.FRIDAY...PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S. SOUTH WINDS AROUND 5 MPH.
.SATURDAY...SHOWERS LIKELY. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. WEST WINDS AROUND 5 MPH.
.SUNDAY...PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE
LOWER 50S. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND 5 MPH.
.MONDAY...PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE MID
70S. NORTHWEST WINDS AROUND 5 MPH.
.TUESDAY...PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
$$
SJC
Southern three-quarters of the Manistee National Forest
NWS Grand Rapids Area of Responsibility
.DISCUSSION...
Showers and thunderstorms are expetcted to develop this evening
with pockets of over 1/2" of rain possible in the heaviest
thunderstorms. Gusty winds are also possible. High pressure
then dries things out for Wednesday and Thursday with MinRH
values falling into the upper 30s for sime, lowest across
interior Central Lower Michigan.
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
143 PM EDT Tue Aug 18 2026
.TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 3 AM, then
partly cloudy (60-70 percent). Rain showers
until 12 AM. Chance of thunderstorms. Chance of
rain showers after 12 AM.
Chance of pcpn......80 percent.
Min temperature.....53-58.
24 hr trend......Unchanged.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 8 mph in the evening
becoming light.
Mixing height.......Near Lake Michigan, 1500-2000 ft AGL.
Mixing height.......Inland, 3400-3900 ft AGL decreasing to 800-1300
ft AGL after midnight.
Transport winds.....Southwest around 10 mph shifting to the
northwest after midnight.
Smoke dispersal.....840 (excellent) decreasing to 110 (poor) after
midnight.
Pcpn Amount.........0.07-0.79 in.
.WEDNESDAY...
Sky/weather.........Mostly sunny (30-40 percent).
Max temperature.....75-80.
24 hr trend......3 degrees cooler.
Min humidity........33-38 percent.
24 hr trend......13 percent drier.
20-foot winds.......Light winds becoming northwest around 7 mph in
the afternoon.
Mixing height.......Near Lake Michigan, 4400-4900 ft AGL.
Mixing height.......Inland, 2800-3300 ft AGL increasing to
6500-7000 ft AGL in the afternoon.
Transport winds.....North 5 to 10 mph.
Smoke dispersal.....240 (fair) increasing to 850 (excellent) in the
afternoon.
Pcpn Amount.........none to 0.03 in.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....46-51.
24 hr trend......7 degrees cooler.
Max humidity........93-98 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......Near Lake Michigan, 3300-3800 ft AGL decreasing
to 0-500 ft AGL after midnight.
Mixing height.......Inland, 5000-5500 ft AGL decreasing to 0-400 ft
AGL after midnight.
Transport winds.....North around 10 mph shifting to the east after
midnight.
Smoke dispersal.....660 (excellent) decreasing to 30 (poor) after
midnight.
Pcpn Amount.........None.
.THURSDAY...
Sky/weather.........Sunny (5-15 percent).
Max temperature.....77-82.
24 hr trend......2 degrees warmer.
Min humidity........45-50 percent near Lake Michigan and 33-38
percent Inland.
24 hr trend......6 percent wetter near Lake Michigan and
unchanged Inland.
20-foot winds.......Light winds becoming west around 7 mph in the
afternoon.
Mixing height.......Near Lake Michigan, 4500-5000 ft AGL.
Mixing height.......Inland, 4000-4500 ft AGL increasing to
7900-8400 ft AGL in the afternoon.
Transport winds.....South around 5 mph shifting to the west in the
afternoon.
Smoke dispersal.....470-960 (good to excellent).
Pcpn Amount.........None.
$$
EXTENDED FORECAST
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds 5 to
6 mph in the evening becoming light.
.FRIDAY...Mostly sunny with a chance of showers. Highs around 80.
Southwest winds 5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows around
60. Southwest winds 5 to 9 mph.
.SATURDAY...Mostly sunny with a chance of showers. Chance of
thunderstorms in the afternoon. Highs in the upper 70s. West winds
6 to 11 mph.
.SATURDAY NIGHT...Mostly clear. Chance of showers and thunderstorms
in the evening. Lows in the mid 50s. Northwest winds 6 to 11 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Northwest winds 6 to 11 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the upper 70s.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.TUESDAY...Mostly sunny. Highs around 80.
$$
Hiawatha National Forest
NWS Marquette Area of Responsibility
.DISCUSSION...
MIZ001-003-191200-
A few rounds of rain showers with isolated thunderstorms will impact
eastern portions of the UP early this morning and again this
afternoon. Today's highs across the area will range from 71 to 81,
warmest across the south-central with min RH values generally in the
mid 30s to low 40s percent range across the west, 40s and 50s
percent range (central), and mid 50s to low 60s percent range across
the east. Southwestern winds will continue to veer northwest with
cold front passage this morning.
MIZ020-025>027-190815-
Alger-Luce-Northern Schoolcraft-
Including the cities of Grand Marais, Munising, Newberry,
and Seney
600 AM EDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy. A chance of rain showers and a
slight chance of thunderstorms through mid
afternoon. Chance of precipitation 50 percent.
Max temperature.....Around 74.
24 hr trend......5 degrees cooler.
Min humidity........53-58 percent.
24 hr trend......17 percent wetter.
20-foot winds.......West 6 to 11 mph shifting to the northwest 8 to
13 mph by mid afternoon. Gusts up to 20 mph.
PCPN amount.........None to 0.06 inch.
Hours of Sun........6.
Chance of thunder...23 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....Around 45 inland to around 56 at the shore.
24 hr trend......13 degrees cooler.
Max humidity........97-100 percent inland to 85 percent at the
shore.
24 hr trend......Unchanged.
20-foot winds.......West 7 to 12 mph.
PCPN amount.........None.
Chance of thunder...1 percent.
.WEDNESDAY...
Sky/weather.........Mostly sunny.
Max temperature.....Around 74.
Min humidity........38-43 percent inland to 49 percent at the
shore.
20-foot winds.......Northwest 5 to 10 mph increasing to 8 to
13 mph with gusts to around 20 mph by mid
afternoon.
PCPN amount.........None.
Hours of Sun........11.
Chance of thunder...0 percent.
Delta-
Including the cities of Escanaba and Gladstone
600 AM EDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Mostly cloudy. A chance of rain showers and
thunderstorms. Chance of precipitation 50
percent.
Max temperature.....Around 78.
24 hr trend......Unchanged.
Min humidity........53-58 percent.
24 hr trend......17 percent wetter.
20-foot winds.......West 7 to 12 mph shifting to the north 6 to 11
mph by mid afternoon.
PCPN amount.........None to 0.37 inch.
Hours of Sun........5.
Chance of thunder...34 percent.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming clear. A slight
chance of rain showers through midnight. Chance
of showers 20 percent.
Min temperature.....42-47 inland to around 52 at the shore.
24 hr trend......12 degrees cooler.
Max humidity........95-100 percent inland to 89 percent at the
shore.
24 hr trend......5 percent wetter.
20-foot winds.......Variable 5 mph or less becoming west 4 to
9 mph late.
PCPN amount.........None to 0.01 inch.
Chance of thunder...4 percent.
.WEDNESDAY...
Sky/weather.........Mostly sunny.
Max temperature.....Around 78.
Min humidity........34-39 percent.
20-foot winds.......Northwest 5 to 10 mph.
PCPN amount.........None.
Hours of Sun........11.
Chance of thunder...0 percent.
Ottawa National Forest
NWS Marquette Area of Responsibility
$$
Ontonagon-Gogebic-Southern Houghton-
Including the cities of Ontonagon, Ironwood, Kenton, and Sidnaw
600 AM EDT Tue Aug 18 2026 /500 AM CDT Tue Aug 18 2026/
.TODAY...
Sky/weather.........Partly cloudy. A slight chance of rain showers
by early afternoon. Chance of showers 20
percent.
Max temperature.....Around 73.
24 hr trend......6 degrees cooler.
Min humidity........39-44 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Northwest 6 to 11 mph.
PCPN amount.........None to 0.02 inch.
Hours of Sun........9.
Chance of thunder...10 percent.
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....42-47 inland to around 56 at the shore.
24 hr trend......13 degrees cooler.
Max humidity........95-100 percent inland to 79 percent at the
shore.
24 hr trend......Unchanged.
20-foot winds.......West 5 mph or less.
PCPN amount.........None.
Chance of thunder...1 percent.
.WEDNESDAY...
Sky/weather.........Sunny.
Max temperature.....Around 74.
Min humidity........32-37 percent.
20-foot winds.......Northwest 5 to 10 mph.
PCPN amount.........None.
Hours of Sun........13.
Chance of thunder...0 percent.
$$
Baraga-Marquette-
Including the cities of L'Anse, Gwinn, and Marquette
600 AM EDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy. A chance of rain showers and a
slight chance of thunderstorms by late morning.
Chance of precipitation 40 percent.
Max temperature.....71-76.
24 hr trend......Unchanged.
Min humidity........46-51 percent.
24 hr trend......Unchanged.
20-foot winds.......West 7 to 12 mph shifting to the northwest by
mid afternoon. Gusts up to 20 mph.
PCPN amount.........None to 0.08 inch.
Hours of Sun........8.
Chance of thunder...13 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....41-46 inland to around 56 at the shore.
24 hr trend......12 degrees cooler.
Max humidity........95-100 percent inland to 82 percent at the
shore.
24 hr trend......Unchanged.
20-foot winds.......West 7 to 12 mph.
PCPN amount.........None.
Chance of thunder...1 percent.
.WEDNESDAY...
Sky/weather.........Mostly sunny.
Max temperature.....72-77.
Min humidity........40-45 percent.
20-foot winds.......Northwest 6 to 11 mph increasing to 7 to
12 mph with gusts to around 20 mph by mid
afternoon.
PCPN amount.........None.
Hours of Sun........11.
Chance of thunder...0 percent.
$$
Iron-Dickinson-
Including the cities of Iron River and Iron Mountain
500 AM CDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy. A slight chance of rain showers
by late morning. A slight chance of
thunderstorms by mid afternoon. Chance of
precipitation 20 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........47-52 percent.
24 hr trend......7 percent wetter.
20-foot winds.......West 6 to 11 mph shifting to the northwest by
mid afternoon. Gusts up to 20 mph.
PCPN amount.........None to 0.07 inch.
Hours of Sun........6.
Chance of thunder...18 percent.
.TONIGHT...
Sky/weather.........Mostly clear. A slight chance of rain showers
early in the evening. Chance of showers 20
percent.
Min temperature.....41-46.
24 hr trend......10 degrees cooler.
Max humidity........96-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest 5 mph or less shifting to the west 4
to 9 mph late.
PCPN amount.........None.
Chance of thunder...2 percent.
.WEDNESDAY...
Sky/weather.........Sunny.
Max temperature.....73-78.
Min humidity........35-40 percent.
20-foot winds.......Northwest 6 to 11 mph.
PCPN amount.........None.
Hours of Sun........12.
Chance of thunder...0 percent.
EXTENDED FORECAST For the U.P.
$$
.THURSDAY...Mostly clear. A 20 percent chance of rain showers and
thunderstorms. Lows 42 to 47 inland to around 55 at the shore. Highs
77 to 82 inland to around 75 at the shore. Variable winds 5 mph or
less.
.FRIDAY...Partly cloudy. A chance of rain showers and a slight
chance of thunderstorms. Chance of precipitation 50 percent. Lows
52 to 57 inland to around 62 at the shore. Highs 76 to 81. Southwest
winds 4 to 9 mph with gusts to around 20 mph.
.SATURDAY...Mostly clear. A chance of rain showers and a slight
chance of thunderstorms. Chance of precipitation 50 percent. Lows
49 to 54 inland to around 59 at the shore. Highs 72 to 77 inland to
around 71 at the shore. Northwest winds 4 to 9 mph with gusts to
around 20 mph.
.SUNDAY...Mostly clear. A 20 percent chance of rain showers. Lows
45 to 50 inland to around 57 at the shore. Highs 72 to 77 inland to
around 70 at the shore.
.MONDAY...Partly cloudy with a 20 percent chance of rain showers.
Lows 45 to 50 inland to around 57 at the shore. Highs 75 to 80.
.Outlook for Tue Aug 25 through Mon Aug 31...expect near normal
temperatures and below normal precipitation.
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