Extreme Heat Continues; Severe Thunderstorms into Upper Midwest; Strong Bering Sea Storm

Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. 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 Sun Aug 2 2026 The water temperature off Buffalo is 74 degrees.

1004 AM EDT Sun Aug 2 2026 The water temperature off Rochester is 63 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

184
FZUS51 KBUF 030205
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
1004 PM EDT Sun Aug 2 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.

LEZ020-030900-
Upper Niagara River and Buffalo Harbor-
1004 PM EDT Sun Aug 2 2026

.REST OF TONIGHT...Northwest winds 10 knots or less. Showers
likely with a chance of thunderstorms late this evening, then a
chance of showers after midnight.
.MONDAY...Northwest winds 5 to 10 knots. A chance of showers in
the morning.
.MONDAY NIGHT...Northwest winds 5 to 10 knots becoming light and
variable. Mainly clear.
.TUESDAY...Light and variable winds. Sunny.
.TUESDAY NIGHT...Light and variable winds. Mainly clear.
.WEDNESDAY...South winds less than 10 knots. A chance of showers
Wednesday night.
.THURSDAY...Southwest winds less than 10 knots. A chance of
showers and thunderstorms.
.FRIDAY...Southwest winds less than 10 knots. A chance of
showers.

Winds and waves higher in and near thunderstorms.

The water temperature off Buffalo is 74 degrees.

$$

LOZ030-030900-
Lower Niagara River-
1004 PM EDT Sun Aug 2 2026

.REST OF TONIGHT...North winds 5 to 10 knots becoming northwest.
Showers likely with a chance of thunderstorms late this evening,
then a chance of showers after midnight.
.MONDAY...Northwest winds 10 to 15 knots. A chance of showers in
the morning.
.MONDAY NIGHT...Northwest winds 5 to 10 knots becoming light and
variable. Clear.
.TUESDAY...Light and variable winds. Sunny.
.TUESDAY NIGHT...Southeast winds less than 10 knots. Mainly
clear.
.WEDNESDAY...Light and variable winds. A chance of showers
Wednesday night.
.THURSDAY...Southwest winds less than 10 knots. A chance of
showers and thunderstorms.
.FRIDAY...Southwest winds less than 10 knots. A chance of
showers.

Winds and waves higher in and near thunderstorms.

$$

LEZ040-041-030900-
Buffalo to Ripley along Lake Erie-
1004 PM EDT Sun Aug 2 2026

.REST OF TONIGHT...North winds 10 to 15 knots. Showers with a
chance of thunderstorms late this evening, then showers likely
after midnight. Waves 1 to 3 feet.
.MONDAY...North winds 10 to 15 knots becoming west. Becoming
mostly sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...West winds 10 knots or less becoming southeast.
Mainly clear. Waves 1 foot or less.
.TUESDAY...South winds less than 10 knots becoming northwest.
Sunny. Waves 1 foot or less.
.TUESDAY NIGHT...Northeast winds 10 knots or less becoming south.
Mainly clear. Waves 1 foot or less.
.WEDNESDAY...South winds 10 knots or less. A chance of showers
and thunderstorms. Waves 1 foot or less.
.THURSDAY...Southwest winds 10 knots or less. A chance of showers
and thunderstorms during the day, then showers likely with a
chance of thunderstorms Thursday night. Waves 1 foot or less.
.FRIDAY...Southwest winds 10 knots or less becoming south.
Showers likely during the day, then a chance of showers Friday
night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ042-030900-
Niagara River to Hamlin Beach along Lake Ontario-
1004 PM EDT Sun Aug 2 2026

.REST OF TONIGHT...Northeast winds 10 to 15 knots becoming
northwest 15 to 20 knots. Showers likely with a chance of
thunderstorms late this evening, then a chance of showers and
thunderstorms after midnight. A chance of showers late. Waves
1 to 3 feet building to 2 to 4 feet.
.MONDAY...Northwest winds 15 to 20 knots becoming west. A chance
of showers in the morning. Waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet. Waves occasionally around
6 feet.
.MONDAY NIGHT...West winds 5 to 15 knots. Mainly clear. Waves
1 to 3 feet subsiding to 1 foot or less.
.TUESDAY...West winds less than 10 knots becoming north. Sunny.
Waves 1 foot or less.
.TUESDAY NIGHT...East winds 10 knots or less becoming south.
Mainly clear. Waves 1 foot or less.
.WEDNESDAY...South winds less than 10 knots becoming southwest. A
chance of showers Wednesday night. Waves 1 foot or less.
.THURSDAY...Southwest winds less than 10 knots becoming west. A
chance of showers and thunderstorms. Waves 1 foot or less.
.FRIDAY...West winds less than 10 knots becoming southwest. A
chance of showers. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ043-030900-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
1004 PM EDT Sun Aug 2 2026

.REST OF TONIGHT...Southeast winds 5 to 15 knots becoming west.
Showers with a chance of thunderstorms, then a chance of showers
late. Waves 2 feet or less.
.MONDAY...Northwest winds 15 to 20 knots becoming west. A chance
of showers in the morning. Waves 2 to 4 feet building to 3 to
5 feet. Waves occasionally around 6 feet.
.MONDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to
15 knots. Mainly clear. Waves 3 to 5 feet subsiding to 1 to
3 feet. Waves occasionally around 6 feet.
.TUESDAY...West winds 10 knots or less becoming north. Sunny.
Waves 2 feet or less.
.TUESDAY NIGHT...Northeast winds less than 10 knots becoming
south. Mainly clear. Waves 1 foot or less.
.WEDNESDAY...South winds less than 10 knots. A chance of showers
Wednesday night. Waves 1 foot or less.
.THURSDAY...Southwest winds less than 10 knots. A chance of
showers and thunderstorms. Waves 1 foot or less.
.FRIDAY...West winds less than 10 knots becoming southwest. A
chance of showers. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 63 degrees.

$$

LOZ044-030900-
Sodus Bay to Mexico Bay along Lake Ontario-
1004 PM EDT Sun Aug 2 2026

.REST OF TONIGHT...Southeast winds 15 to 20 knots becoming
southwest 10 to 15 knots. Showers with a chance of thunderstorms.
Waves 2 feet or less.
.MONDAY...West winds 15 to 20 knots becoming northwest. A chance
of showers. Waves 1 to 3 feet building to 3 to 6 feet. Waves
occasionally around 7 feet.
.MONDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to
10 knots. Becoming mainly clear. Waves 3 to 5 feet subsiding to
1 to 3 feet. Waves occasionally around 6 feet.
.TUESDAY...West winds 10 knots or less. Sunny. Waves 2 feet or
less.
.TUESDAY NIGHT...Northeast winds 10 knots or less becoming
southeast. Mainly clear. Waves 1 foot or less.
.WEDNESDAY...South winds 10 knots or less. A chance of showers
Wednesday night. Waves 1 foot or less.
.THURSDAY...South winds 10 knots or less becoming southwest. A
chance of showers and thunderstorms. Waves 1 foot or less.
.FRIDAY...West winds less than 10 knots becoming south. A chance
of showers. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ045-030900-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
1004 PM EDT Sun Aug 2 2026

.REST OF TONIGHT...Southeast winds 15 to 20 knots becoming south.
Showers with a chance of thunderstorms. Waves 1 to 3 feet.
.MONDAY...West winds 15 to 20 knots becoming northwest. A chance
of showers. Waves 1 to 3 feet building to 3 to 5 feet. Waves
occasionally around 6 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots becoming west and
diminishing to 5 to 10 knots. Becoming mainly clear. Waves 3 to
5 feet subsiding to 1 to 3 feet. Waves occasionally around
6 feet.
.TUESDAY...West winds 5 to 10 knots becoming southwest. Sunny.
Waves 2 feet or less.
.TUESDAY NIGHT...Southwest winds 10 knots or less becoming
southeast. Mainly clear. Waves 1 foot or less.
.WEDNESDAY...South winds 10 knots or less. A chance of showers
Wednesday night. Waves 1 foot or less.
.THURSDAY...South winds 10 knots or less becoming southwest. A
chance of showers and thunderstorms. Waves 1 foot or less.
.FRIDAY...Southwest winds 10 knots or less becoming south. A
chance of showers. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

Radar