Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. 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

1003 AM EDT Fri Jun 19 2026 The water temperature off Buffalo is 66 degrees.

1003 AM EDT Fri Jun 19 2026 The water temperature off Rochester is 60 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

873
FZUS51 KBUF 192003
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
403 PM EDT Fri Jun 19 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.

LEZ020-200300-
Upper Niagara River and Buffalo Harbor-
403 PM EDT Fri Jun 19 2026

.TONIGHT...West winds 5 to 15 knots. Mainly clear.
.SATURDAY...West winds 5 to 10 knots. Mostly sunny.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots becoming light
and variable. Partly to mostly cloudy.
.SUNDAY...Light and variable winds. Partly to mostly sunny.
.SUNDAY NIGHT...Southwest winds less than 10 knots. Showers
likely overnight.
.MONDAY...East winds 10 knots or less becoming northwest. Showers
likely during the day, then a chance of showers Monday night.
.TUESDAY...Northwest winds less than 10 knots. Mainly clear, then
becoming partly cloudy.
.WEDNESDAY...Light and variable winds. A chance of showers
Wednesday night.

The water temperature off Buffalo is 66 degrees.

$$

LOZ030-200300-
Lower Niagara River-
403 PM EDT Fri Jun 19 2026

.TONIGHT...West winds 5 to 15 knots. Mainly clear.
.SATURDAY...West winds 5 to 10 knots. Mostly sunny.
.SATURDAY NIGHT...West winds 5 to 10 knots becoming light and
variable. Partly to mostly cloudy.
.SUNDAY...Light and variable winds becoming southwest 5 to
10 knots. Partly to mostly sunny.
.SUNDAY NIGHT...Southwest winds less than 10 knots. A chance of
showers overnight.
.MONDAY...Northeast winds 10 knots or less becoming northwest.
Showers likely during the day, then a chance of showers Monday
night.
.TUESDAY...Northwest winds less than 10 knots. Mainly clear, then
becoming partly cloudy.
.WEDNESDAY...Light and variable winds. A chance of showers
Wednesday night.

$$

LEZ040-041-200300-
Buffalo to Ripley along Lake Erie-
403 PM EDT Fri Jun 19 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.TONIGHT...West winds 15 to 20 knots diminishing to 5 to
10 knots. Mainly clear. Waves 3 to 5 feet subsiding to 1 to
3 feet. Waves occasionally around 6 feet.
.SATURDAY...West winds 5 to 15 knots becoming southwest. Mostly
sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 knots or less. A chance of
showers overnight. Waves 2 feet or less.
.SUNDAY...West winds less than 10 knots. A chance of showers in
the morning. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest winds 10 knots or less becoming east.
Showers likely overnight. Waves 1 foot or less.
.MONDAY...East winds 5 to 15 knots becoming north. Showers likely
with a chance of thunderstorms during the day, then a chance of
showers Monday night. Waves 2 feet or less.
.TUESDAY...Northwest winds 10 knots or less becoming west. Partly
cloudy. Waves 1 foot or less.
.WEDNESDAY...Southwest winds less than 10 knots. A chance of
showers Wednesday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ042-200300-
Niagara River to Hamlin Beach along Lake Ontario-
403 PM EDT Fri Jun 19 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TONIGHT...West winds 15 to 20 knots. Mainly clear. Waves 3 to
5 feet subsiding to 2 to 4 feet. Waves occasionally around
6 feet.
.SATURDAY...West winds 10 to 15 knots. Mostly sunny. Waves 2 to
4 feet subsiding to 1 to 3 feet.
.SATURDAY NIGHT...West winds 10 knots or less. Partly to mostly
cloudy. Waves 2 feet or less.
.SUNDAY...West winds 10 knots or less. Partly to mostly sunny.
Waves 1 foot or less.
.SUNDAY NIGHT...Southwest winds less than 10 knots becoming
southeast. A chance of showers overnight. Waves 1 foot or less.
.MONDAY...East winds 5 to 15 knots becoming northwest. Showers
likely during the day, then a chance of showers Monday night.
Waves 1 to 3 feet.
.TUESDAY...Northwest winds 5 to 10 knots becoming west. Mainly
clear, then becoming partly cloudy. Waves 1 foot or less.
.WEDNESDAY...West winds less than 10 knots becoming south. A
chance of showers Wednesday night. Waves 1 foot or less.

$$

LOZ043-044-200300-
Hamlin Beach to Mexico Bay along Lake Ontario
including Irondequoit Bay-
403 PM EDT Fri Jun 19 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT...

.TONIGHT...West winds 15 to 25 knots. Partly to mostly cloudy.
Waves 4 to 7 feet. Waves occasionally around 9 feet.
.SATURDAY...West winds 15 to 20 knots. Mostly sunny. Waves 3 to
6 feet. Waves occasionally around 7 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. Partly cloudy. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY...West winds 5 to 10 knots. Mostly sunny. Waves 1 foot or
less.
.SUNDAY NIGHT...West winds less than 10 knots becoming south. A
chance of showers overnight. Waves 1 foot or less.
.MONDAY...Southeast winds 5 to 15 knots becoming northwest.
Showers likely. Waves 2 feet or less.
.TUESDAY...Northwest winds 5 to 10 knots becoming west. Partly
cloudy. Waves 1 to 2 feet.
.WEDNESDAY...West winds less than 10 knots. A chance of showers
Wednesday night. Waves 1 foot or less.

The water temperature off Rochester is 60 degrees.

$$

LOZ045-200300-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
403 PM EDT Fri Jun 19 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT...

.TONIGHT...West winds 15 to 25 knots. A chance of showers. Waves
4 to 7 feet. Waves occasionally around 9 feet.
.SATURDAY...West winds 15 to 20 knots. A chance of showers and
thunderstorms in the afternoon. Waves 3 to 6 feet. Waves
occasionally around 7 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots becoming southwest
less than 10 knots. A chance of showers in the evening. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY...Southwest winds 10 knots or less. Sunny. Waves 1 foot
or less.
.SUNDAY NIGHT...Southwest winds 10 knots or less becoming south.
Partly to mostly cloudy. Waves 1 foot or less.
.MONDAY...Southeast winds 5 to 10 knots becoming north. Showers
likely. Waves 1 foot or less.
.TUESDAY...Northwest winds 10 knots or less becoming west. Partly
cloudy. Waves 2 feet or less.
.WEDNESDAY...West winds 10 knots or less becoming south. Partly
to mostly cloudy. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

Radar