Extreme Heat and Severe Thunderstorms Today

Extreme heat continues today from the central Plains to the lower Mississippi River Valley, over southeast Montana, and from southern California into the Southwest Deserts. Extreme Heat Warnings remain in effect. Severe thunderstorms capable of strong to severe wind gusts and large hail are possible across the Great Lakes into the Ohio Valley today into tonight. Read More >

Lake Erie

The reported Lake Erie water temperature is taken at the Buffalo Water Treatment Plant located on Lake Erie at the entrance to the Niagara River. The reading is taken at a depth of 30 feet. This data is unofficial.

Lake Ontario

The reported Lake Ontario water temperature is taken at the Monroe County Water Treatment Plant near Greece, N.Y. The temperatures is measured at the intake pipes about 1500 feet offshore at a approximate depth of 35 feet. The Lake Ontario temperature occasionally may not be representative of the surface temperature due to upwelling. This process, more common during the summer months, brings colder water from the deeper parts of the lake toward the surface near the temperature sensor. The surface water may be significantly warmer. This data is unofficial.

Latest Lake Temperatures

1004 AM EDT Mon Jul 27 2026 The water temperature off Buffalo is 73 degrees.

1004 AM EDT Mon Jul 27 2026 The water temperature off Rochester is 67 degrees.

Monthly Lake Erie Temperatures
January	February	March	April	May	June	July	August	September	October	November	December

Historical Lake Erie Temperatures (Unofficial Normals and Extremes)

The daily lake temperatures for Lake Erie off Buffalo and for Lake Ontario off Rochester are included in the Nearshore Marine Forecast.

Click the link for previous versions of the Nearshore Marine Forecast.

NearShore Marine Forecast

960
FZUS51 KBUF 272004
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
404 PM EDT Mon Jul 27 2026

For waters within five nautical miles of shore

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

LEZ020-280300-
Upper Niagara River and Buffalo Harbor-
404 PM EDT Mon Jul 27 2026

.TONIGHT...Southwest winds 10 knots or less becoming south. A
chance of showers and thunderstorms early, then showers with a
chance of thunderstorms from late evening on.
.TUESDAY...South winds 5 to 10 knots becoming north. Showers with
a chance of thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots. Showers likely with a
chance of thunderstorms in the evening, then showers likely
overnight.
.WEDNESDAY...North winds 10 to 15 knots. Showers likely in the
morning, then showers in the afternoon.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Showers in the
evening, then a chance of showers overnight.
.THURSDAY...North winds 5 to 10 knots becoming light and
variable. Partly cloudy, then becoming mainly clear.
.FRIDAY...Light and variable winds. Mainly clear, then becoming
partly cloudy.
.SATURDAY...Light and variable winds. A chance of showers
Saturday night.

Winds and waves higher in and near thunderstorms.

The water temperature off Buffalo is 73 degrees.

$$

LOZ030-280300-
Lower Niagara River-
404 PM EDT Mon Jul 27 2026

.TONIGHT...South winds 5 to 10 knots. A chance of showers and
thunderstorms early, then showers with a chance of thunderstorms
from late evening on.
.TUESDAY...Southeast winds 5 to 10 knots becoming north. Showers
with a chance of thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...North winds 10 to 15 knots. Showers likely with
a chance of thunderstorms in the evening, then showers likely
overnight.
.WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to
15 knots. Showers likely.
.WEDNESDAY NIGHT...North winds around 10 knots. Showers likely in
the evening, then a chance of showers overnight.
.THURSDAY...North winds 10 knots or less becoming northwest.
Becoming mainly clear.
.FRIDAY...Northwest winds less than 10 knots. Mainly clear, then
becoming partly cloudy.
.SATURDAY...Light and variable winds. A chance of showers
Saturday night.

Winds and waves higher in and near thunderstorms.

$$

LEZ040-041-280300-
Buffalo to Ripley along Lake Erie-
404 PM EDT Mon Jul 27 2026

.TONIGHT...Southwest winds 5 to 15 knots becoming south. A chance
of showers and thunderstorms early, then showers with a chance of
thunderstorms from late evening on. Waves 2 feet or less.
.TUESDAY...South winds 10 to 15 knots becoming northwest 15 to
20 knots. Showers with a chance of thunderstorms in the morning,
then a chance of showers and thunderstorms in the afternoon.
Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots becoming north.
Showers likely with a chance of thunderstorms in the evening,
then showers likely overnight. Waves 1 to 3 feet building to 3 to
5 feet. Waves occasionally around 6 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northwest.
Showers likely in the morning, then showers in the afternoon.
Waves 2 to 4 feet.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Showers in the
evening, then a chance of showers overnight. Waves 1 to 3 feet.
.THURSDAY...North winds 5 to 15 knots becoming northwest less
than 10 knots. Partly cloudy, then becoming mainly clear. Waves
2 feet or less.
.FRIDAY...Northwest winds less than 10 knots becoming south.
Mainly clear, then becoming partly cloudy. Waves 1 foot or less.
.SATURDAY...South winds less than 10 knots. A chance of showers
Saturday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ042-280300-
Niagara River to Hamlin Beach along Lake Ontario-
404 PM EDT Mon Jul 27 2026

.TONIGHT...Southeast winds 5 to 15 knots becoming south. A chance
of showers and thunderstorms early, then showers with a chance of
thunderstorms from late evening on. Waves 2 feet or less.
.TUESDAY...Southeast winds 10 to 15 knots becoming north 15 to
20 knots. Showers with a chance of thunderstorms. Waves 1 foot or
less building to 2 to 4 feet.
.TUESDAY NIGHT...North winds 15 to 25 knots. Showers likely with
a chance of thunderstorms in the evening, then showers overnight.
Waves 3 to 6 feet. Waves occasionally around 7 feet.
.WEDNESDAY...North winds 15 to 25 knots. Showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
Waves 3 to 6 feet. Waves occasionally around 7 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Showers with a
chance of thunderstorms in the evening, then showers likely
overnight. Waves 2 to 4 feet.
.THURSDAY...North winds 5 to 15 knots becoming northwest. A
chance of showers during the day. Waves 1 to 3 feet.
.FRIDAY...Northwest winds less than 10 knots becoming southwest.
Mainly clear, then becoming partly cloudy. Waves 1 foot or less.
.SATURDAY...South winds less than 10 knots. A chance of showers
Saturday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ043-280300-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
404 PM EDT Mon Jul 27 2026

.TONIGHT...East winds 5 to 10 knots becoming south. A chance of
showers and thunderstorms. Showers with a chance of thunderstorms
late. Waves 1 foot or less.
.TUESDAY...South winds 10 to 15 knots becoming northeast 15 to
20 knots. Showers with a chance of thunderstorms. Waves 1 to
3 feet.
.TUESDAY NIGHT...North winds 15 to 25 knots. Showers with a
chance of thunderstorms in the evening, then showers likely
overnight. Waves 2 to 4 feet building to 3 to 6 feet. Waves
occasionally around 7 feet.
.WEDNESDAY...North winds 15 to 25 knots. Showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
Waves 4 to 6 feet. Waves occasionally around 7 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Showers with a
chance of thunderstorms in the evening, then showers overnight.
Waves 3 to 6 feet. Waves occasionally around 7 feet.
.THURSDAY...North winds 15 to 20 knots becoming northwest 5 to
15 knots. A chance of showers during the day. Waves 2 to 4 feet
subsiding to 1 to 3 feet.
.FRIDAY...Northwest winds less than 10 knots. Mainly clear, then
becoming partly cloudy. Waves 1 foot or less.
.SATURDAY...South winds less than 10 knots. Mostly cloudy. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 67 degrees.

$$

LOZ044-280300-
Sodus Bay to Mexico Bay along Lake Ontario-
404 PM EDT Mon Jul 27 2026

.TONIGHT...East winds 10 knots or less becoming south. A chance
of showers and thunderstorms after midnight. Showers likely with
a chance of thunderstorms late. Waves 1 foot or less.
.TUESDAY...South winds 10 to 15 knots becoming east. Showers with
a chance of thunderstorms. Waves 1 to 3 feet.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots becoming north
15 to 20 knots. Showers with a chance of thunderstorms. Waves
1 to 3 feet building to 3 to 5 feet. Waves occasionally around
6 feet.
.WEDNESDAY...North winds 15 to 20 knots. Showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
Waves 3 to 6 feet. Waves occasionally around 7 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Showers with a
chance of thunderstorms in the evening, then showers overnight.
Waves 3 to 5 feet subsiding to 2 to 4 feet. Waves occasionally
around 6 feet.
.THURSDAY...North winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 2 feet.
.FRIDAY...North winds 10 knots or less becoming southwest. Mainly
clear, then becoming partly cloudy. Waves 1 foot or less.
.SATURDAY...South winds less than 10 knots. Partly to mostly
cloudy. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ045-280300-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
404 PM EDT Mon Jul 27 2026

.TONIGHT...South winds 10 knots or less increasing to 10 to
15 knots. A chance of showers and thunderstorms after midnight.
Waves 2 feet or less.
.TUESDAY...South winds 15 to 20 knots becoming east 10 to
15 knots. Showers with a chance of thunderstorms. Waves 2 feet or
less.
.TUESDAY NIGHT...East winds 15 to 20 knots becoming northeast.
Showers with a chance of thunderstorms. Waves 1 to 3 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots becoming north.
Showers in the morning, then showers with a chance of
thunderstorms in the afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Showers with a
chance of thunderstorms in the evening, then showers likely
overnight. Waves 1 to 3 feet.
.THURSDAY...North winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves 2 feet or less.
.FRIDAY...North winds 10 knots or less becoming south. Partly
cloudy. Waves 1 foot or less.
.SATURDAY...South winds 10 knots or less. Partly to mostly
cloudy. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

Radar