Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. 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 20 2025 The water temperature off Buffalo is 65 degrees.

1003 AM EDT Fri Jun 20 2025 The water temperature off Rochester is 47 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

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FZUS51 KBUF 210203
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
1003 PM EDT Fri Jun 20 2025

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.

LEZ020-210900-
Upper Niagara River and Buffalo Harbor-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 10 knots or less becoming
south. A chance of showers.
.SATURDAY...South winds 5 to 15 knots becoming southwest. A
chance of showers in the morning.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Partly cloudy.
.SUNDAY...Southwest winds 10 to 15 knots. Sunny.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Mainly clear.
.MONDAY...Southwest winds 5 to 15 knots. Mainly clear.
.TUESDAY...Southwest winds 5 to 10 knots becoming light and
variable. Mainly clear, then becoming partly cloudy.
.WEDNESDAY...East winds 10 knots or less. A chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

The water temperature off Buffalo is 65 degrees.

$$

LOZ030-210900-
Lower Niagara River-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 10 knots or less becoming
south. A chance of showers.
.SATURDAY...South winds 5 to 15 knots becoming southwest. A
chance of showers in the morning.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots. Partly cloudy.
.SUNDAY...Southwest winds 15 to 20 knots diminishing to 10 to
15 knots. Sunny.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Mainly clear.
.MONDAY...Southwest winds 5 to 15 knots. Mainly clear.
.TUESDAY...Southwest winds 10 knots or less becoming northeast.
Partly cloudy.
.WEDNESDAY...East winds 5 to 10 knots. A chance of showers during
the day, then a chance of showers and thunderstorms Wednesday
night.

Winds and waves higher in and near thunderstorms.

$$

LEZ041-210900-
Dunkirk to Buffalo along Lake Erie-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 5 to 10 knots becoming south.
A chance of showers. Waves 1 to 2 feet.
.SATURDAY...South winds 5 to 10 knots becoming southwest. A
chance of showers in the morning. Waves 1 foot or less.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots. Partly cloudy. Waves 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 15 knots. Sunny. Waves 1 to
3 feet building to 2 to 4 feet.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Mainly clear.
Waves 1 to 3 feet.
.MONDAY...Southwest winds 5 to 15 knots. Mainly clear. Waves 1 to
2 feet.
.TUESDAY...Southwest winds 10 knots or less becoming south.
Mainly clear, then becoming partly cloudy. Waves 2 feet or less.
.WEDNESDAY...Southeast winds less than 10 knots. A chance of
showers and thunderstorms. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LEZ040-210900-
Ripley to Dunkirk along Lake Erie-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 5 to 10 knots becoming south.
A chance of showers. Waves 1 to 2 feet.
.SATURDAY...South winds around 10 knots becoming southwest. A
chance of showers in the morning. Waves around 1 foot.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots. Mainly clear in the evening, then becoming partly
cloudy. Waves 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 15 knots. Sunny. Waves 1 to
3 feet.
.SUNDAY NIGHT...Southwest winds around 10 knots. Mainly clear.
Waves 1 to 3 feet.
.MONDAY...Southwest winds 5 to 15 knots. Mainly clear. Waves 1 to
2 feet.
.TUESDAY...Southwest winds 5 to 15 knots becoming south less than
10 knots. Mainly clear, then becoming partly cloudy. Waves 1 to
2 feet.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming south. A
chance of showers and thunderstorms. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ042-210900-
Niagara River to Hamlin Beach along Lake Ontario-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 10 knots or less. A chance of
showers. Waves 1 foot or less.
.SATURDAY...South winds 10 knots or less increasing to 10 to
15 knots. A chance of showers in the morning. Waves 2 feet or
less.
.SATURDAY NIGHT...South winds 10 to 15 knots becoming southwest
15 to 20 knots. A chance of showers and thunderstorms. Waves 1 to
3 feet building to 2 to 4 feet.
.SUNDAY...Southwest winds 15 to 20 knots. A chance of showers and
thunderstorms in the morning. Waves 2 to 4 feet.
.SUNDAY NIGHT...Southwest winds 15 to 20 knots diminishing to
10 to 15 knots. Mainly clear. Waves 2 to 4 feet subsiding to 1 to
3 feet.
.MONDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots. Mainly clear. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 5 to 15 knots becoming north. Mainly
clear, then becoming partly cloudy. Waves 1 to 2 feet.
.WEDNESDAY...East winds 5 to 10 knots. A chance of showers. Waves
around 1 foot.

Winds and waves higher in and near thunderstorms.

$$

LOZ043-210900-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 10 knots or less. A chance of
showers after midnight. Waves 1 foot or less.
.SATURDAY...South winds 10 knots or less becoming southeast.
Partly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...South winds 5 to 15 knots becoming southwest
15 to 20 knots. A chance of showers and thunderstorms. Waves
1 foot or less building to 2 to 4 feet.
.SUNDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. A chance of showers and thunderstorms in the morning.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Mainly clear.
Waves 1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots. Mainly clear. Waves
2 feet or less.
.TUESDAY...West winds 5 to 15 knots becoming north. Mainly clear,
then becoming partly cloudy. Waves 1 to 2 feet.
.WEDNESDAY...Northeast winds 5 to 10 knots. A chance of showers.
Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 50 degrees.

$$

LOZ044-210900-
Sodus Bay to Mexico Bay along Lake Ontario-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 10 knots or less. Partly to
mostly cloudy. Waves 2 feet or less.
.SATURDAY...South winds less than 10 knots becoming southeast.
Partly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...South winds 5 to 15 knots becoming southwest.
Showers and thunderstorms likely overnight. Waves 2 feet or less.
.SUNDAY...Southwest winds 10 to 15 knots becoming west. Showers
and thunderstorms likely in the morning. Waves 1 to 3 feet
building to 2 to 4 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots becoming southwest.
Mainly clear. Waves 1 to 3 feet.
.MONDAY...Southwest winds 5 to 10 knots. Mainly clear. Waves 1 to
2 feet.
.TUESDAY...West winds 5 to 10 knots becoming north. Mainly clear,
then becoming partly cloudy. Waves 1 to 2 feet.
.WEDNESDAY...Northeast winds 5 to 10 knots. A chance of showers
Wednesday night. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ045-210900-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
1003 PM EDT Fri Jun 20 2025

.REST OF TONIGHT...Southwest winds 10 knots or less. Mainly clear
late this evening, then becoming partly cloudy. Waves 2 feet or
less.
.SATURDAY...South winds 10 knots or less. Partly to mostly sunny.
Waves 1 foot or less.
.SATURDAY NIGHT...South winds 5 to 15 knots becoming southwest
15 to 20 knots. A chance of showers and thunderstorms in the
evening, then showers and thunderstorms likely overnight. Waves
2 feet or less building to 3 to 5 feet. Waves occasionally around
6 feet.
.SUNDAY...Southwest winds 15 to 20 knots diminishing to 10 to
15 knots. Showers and thunderstorms likely in the morning. Waves
3 to 5 feet subsiding to 2 to 4 feet. Waves occasionally around
6 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Mainly clear.
Waves 1 to 3 feet.
.MONDAY...Southwest winds 5 to 15 knots. Mainly clear. Waves 1 to
3 feet.
.TUESDAY...Southwest winds 5 to 15 knots becoming north. Mainly
clear, then becoming partly cloudy. Waves 1 to 3 feet.
.WEDNESDAY...Northeast winds 5 to 10 knots. A chance of showers
Wednesday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

Radar