National Weather Service United States Department of Commerce

Unsettled Weather in the Eastern U.S. through Memorial Day

Wet, stormy, and unsettled weather continues for much of the eastern half of the U.S. through Memorial Day. There is potential for scattered flash flooding across the Central Gulf Coast into North Georgia and across the Upper Ohio Valley. Severe storms capable of hail/wind may occur across the Middle Missouri Valley/Siouxland and across other parts of the central and southern Plains and Southeast. 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 May 24 2026 The water temperature off Buffalo is 54 degrees.
 

1004 AM EDT Sun May 24 2026 The water temperature off Rochester is 45 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


582
FZUS51 KBUF 241404
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
1004 AM EDT Sun May 24 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-LOZ030-242100-
Upper Niagara River and Buffalo Harbor-Lower Niagara River-
1004 AM EDT Sun May 24 2026

.REST OF TODAY...South winds 5 to 10 knots becoming southwest.
Scattered showers with areas of drizzle, then areas of drizzle
late.
.TONIGHT...South winds less than 10 knots. Showers likely.
.MONDAY...Light and variable winds. Mostly cloudy in the morning,
then clearing.
.MONDAY NIGHT...Light and variable winds. Partly cloudy in the
evening, then becoming mostly cloudy.
.TUESDAY...Light and variable winds. Partly cloudy.
.WEDNESDAY...West winds less than 10 knots becoming north. Mostly
cloudy.
.THURSDAY...North winds less than 10 knots becoming northwest.
Mainly clear, then becoming partly cloudy.

The water temperature off Buffalo is 54 degrees.

$$

LEZ040-242100-
Ripley to Dunkirk along Lake Erie-
1004 AM EDT Sun May 24 2026

.REST OF TODAY...South winds 10 knots or less becoming north.
Scattered showers with areas of drizzle. Waves 1 foot or less.
.TONIGHT...Light and variable winds. Showers in the evening, then
showers likely overnight. Waves 1 foot or less.
.MONDAY...Light and variable winds. Mostly cloudy in the morning,
then becoming partly sunny. Waves 1 foot or less.
.MONDAY NIGHT...Light and variable winds. Mostly cloudy. Waves
1 foot or less.
.TUESDAY...Light and variable winds. Partly to mostly cloudy.
Waves 1 foot or less.
.WEDNESDAY...Southwest winds less than 10 knots. Mostly cloudy.
Waves 1 foot or less.
.THURSDAY...Northeast winds 5 to 10 knots becoming north. Mainly
clear, then becoming partly cloudy. Waves 1 foot or less.

$$

LEZ041-242100-
Dunkirk to Buffalo along Lake Erie-
1004 AM EDT Sun May 24 2026

.REST OF TODAY...South winds 10 knots or less becoming southwest.
Scattered showers with areas of drizzle, then areas of drizzle
late. Waves 1 foot or less.
.TONIGHT...Light and variable winds. Showers in the evening, then
showers likely overnight. Waves 1 foot or less.
.MONDAY...Light and variable winds. Mostly cloudy in the morning,
then becoming mostly sunny. Waves 1 foot or less.
.MONDAY NIGHT...Light and variable winds. Mostly cloudy. Waves
1 foot or less.
.TUESDAY...Light and variable winds. Partly to mostly cloudy.
Waves 1 foot or less.
.WEDNESDAY...Southwest winds less than 10 knots. Mostly cloudy.
Waves 1 foot or less.
.THURSDAY...North winds less than 10 knots. Mainly clear, then
becoming partly cloudy. Waves 1 foot or less.

$$

LOZ042-242100-
Niagara River to Hamlin Beach along Lake Ontario-
1004 AM EDT Sun May 24 2026

.REST OF TODAY...Southeast winds 10 knots or less becoming east.
Scattered showers with areas of drizzle, then areas of drizzle
late. Waves 2 feet or less.
.TONIGHT...East winds 10 knots or less becoming west. Showers
likely. Waves 1 foot or less.
.MONDAY...West winds 10 knots or less. Mostly cloudy in the
morning, then clearing. Waves 1 foot or less.
.MONDAY NIGHT...Southwest winds less than 10 knots. Mainly clear
in the evening, then becoming mostly cloudy. Waves 1 foot or
less.
.TUESDAY...Southwest winds 10 knots or less. Partly cloudy. Waves
1 foot or less.
.WEDNESDAY...West winds 5 to 10 knots becoming north. Partly to
mostly cloudy. Waves 1 foot or less.
.THURSDAY...North winds 5 to 10 knots becoming northwest. Mainly
clear, then becoming partly cloudy. Waves 1 foot or less.

$$

LOZ044-242100-
Sodus Bay to Mexico Bay along Lake Ontario-
1004 AM EDT Sun May 24 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...Southeast winds 15 to 20 knots. Scattered
showers late this morning. Waves 1 to 3 feet.
.TONIGHT...Southeast winds 15 to 20 knots diminishing to 5 to
15 knots. Showers. Waves 2 feet or less.
.MONDAY...South winds 10 knots or less becoming west. Showers
likely in the morning, then a chance of showers in the afternoon.
Waves 1 foot or less.
.MONDAY NIGHT...Southwest winds less than 10 knots. Mainly clear
in the evening, then becoming mostly cloudy. Waves 1 foot or
less.
.TUESDAY...Light and variable winds becoming southwest 5 to
10 knots. Partly cloudy. Waves 1 foot or less.
.WEDNESDAY...West winds 10 knots or less becoming north. Partly
cloudy. Waves 1 foot or less.
.THURSDAY...North winds 5 to 10 knots becoming northwest. Mainly
clear, then becoming partly cloudy. Waves 1 to 2 feet.

$$

LOZ043-242100-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
1004 AM EDT Sun May 24 2026

.REST OF TODAY...Southeast winds 15 to 20 knots diminishing to
10 to 15 knots. Cloudy. Waves 1 to 3 feet.
.TONIGHT...Southeast winds 5 to 15 knots. Showers. Waves 2 feet
or less.
.MONDAY...Southwest winds 10 knots or less becoming west. A
chance of showers in the morning. Waves 1 foot or less.
.MONDAY NIGHT...West winds less than 10 knots. Mainly clear in
the evening, then becoming mostly cloudy. Waves 1 foot or less.
.TUESDAY...Light and variable winds becoming southwest 5 to
10 knots. Partly cloudy. Waves 1 foot or less.
.WEDNESDAY...West winds 10 knots or less becoming north. Partly
to mostly cloudy. Waves 1 foot or less.
.THURSDAY...North winds 10 knots or less becoming northwest.
Mainly clear, then becoming partly cloudy. Waves 2 feet or less.

The water temperature off Rochester is 45 degrees.

$$

LOZ045-242100-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
1004 AM EDT Sun May 24 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...Southeast winds 15 to 25 knots. Rain likely late
this morning, then scattered showers early this afternoon. Waves
2 to 4 feet.
.TONIGHT...Southeast winds 15 to 20 knots becoming south 10 to
15 knots. Showers. Waves 1 to 3 feet.
.MONDAY...South winds 10 knots or less becoming southwest.
Showers likely in the morning, then a chance of showers in the
afternoon. Waves 1 foot or less.
.MONDAY NIGHT...Southwest winds 10 knots or less becoming south.
Mainly clear in the evening, then becoming mostly cloudy. Waves
1 foot or less.
.TUESDAY...South winds 5 to 10 knots becoming southwest. Partly
cloudy. Waves 1 foot or less.
.WEDNESDAY...Southwest winds 10 knots or less becoming north. A
chance of showers during the day. Waves 1 foot or less.
.THURSDAY...North winds 5 to 10 knots becoming northwest. Mainly
clear, then becoming partly cloudy. Waves 1 foot or less.

$$