Heavy Rainfall Across South Texas; Heat in the West

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and Lower Mississippi River Valley through Thursday. Hot temperatures will persist over central and northern California and the Pacific Northwest through today. 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 Mon Jun 15 2026 The water temperature off Buffalo is 65 degrees.

1003 AM EDT Mon Jun 15 2026 The water temperature off Rochester is 62 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

874
FZUS51 KBUF 160203
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
1003 PM EDT Mon Jun 15 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.

LEZ020-160900-
Upper Niagara River and Buffalo Harbor-
1003 PM EDT Mon Jun 15 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Partly cloudy.
.TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny.
.TUESDAY NIGHT...Southwest winds 10 knots or less becoming south.
A chance of showers overnight.
.WEDNESDAY...South winds 5 to 15 knots becoming southwest. A
chance of showers in the morning.
.WEDNESDAY NIGHT...Southwest winds 10 knots or less becoming
south and increasing to 15 to 20 knots overnight. A chance of
showers in the evening, then showers overnight.
.THURSDAY...Southwest winds 15 to 25 knots becoming west and
diminishing to around 10 knots. Showers during the day.
.FRIDAY...West winds 5 to 15 knots. A chance of showers.
.SATURDAY...West winds 5 to 15 knots. A chance of showers.

The water temperature off Buffalo is 65 degrees.

$$

LOZ030-160900-
Lower Niagara River-
1003 PM EDT Mon Jun 15 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Partly cloudy.
.TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots becoming south.
Showers likely overnight.
.WEDNESDAY...South winds 5 to 15 knots becoming southwest.
Showers likely in the morning.
.WEDNESDAY NIGHT...Southwest winds 10 knots or less becoming
south and increasing to 15 to 20 knots overnight. A chance of
showers in the evening, then showers overnight.
.THURSDAY...Southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. Showers during the day.
.FRIDAY...West winds 10 to 15 knots. A chance of showers.
.SATURDAY...West winds 5 to 15 knots. A chance of showers.

$$

LEZ040-041-160900-
Buffalo to Ripley along Lake Erie-
1003 PM EDT Mon Jun 15 2026

.REST OF TONIGHT...Southwest winds 15 to 20 knots diminishing to
5 to 10 knots. Partly cloudy. Waves 1 to 2 feet.
.TUESDAY...Southwest winds 5 to 10 knots. Mostly sunny. Waves
1 to 2 feet.
.TUESDAY NIGHT...Southwest winds 10 knots or less becoming south.
A chance of showers in the evening, then showers likely
overnight. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming west. Showers
likely in the morning. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots becoming south
and increasing to 15 to 25 knots overnight. A chance of showers
in the evening, then showers overnight. Waves 1 to 3 feet.
.THURSDAY...Southwest winds to 30 knots becoming west and
diminishing to 10 to 15 knots. Showers during the day. Waves 4 to
7 feet building to 5 to 9 feet, then subsiding to 3 to 5 feet.
Waves occasionally around 11 feet.
.FRIDAY...West winds 10 to 15 knots. A chance of showers. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.SATURDAY...West winds 5 to 15 knots. A chance of showers. Waves
2 to 4 feet subsiding to 1 to 3 feet.

$$

LOZ042-160900-
Niagara River to Hamlin Beach along Lake Ontario-
1003 PM EDT Mon Jun 15 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Mainly clear
late this evening, then becoming partly cloudy. Waves 2 feet or
less.
.TUESDAY...Southwest winds 10 to 15 knots. Mostly sunny. Waves
2 feet or less.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots becoming south. A
chance of showers overnight. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest. A
chance of showers. Waves 2 feet or less.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots becoming
southeast and increasing to 15 to 25 knots. A chance of showers
in the evening, then showers overnight. Waves 1 to 3 feet.
.THURSDAY...Southwest winds to 30 knots becoming west 15 to
25 knots. Showers during the day. Waves 4 to 7 feet building to
5 to 9 feet, then subsiding to 3 to 6 feet. Waves occasionally
around 11 feet.
.FRIDAY...West winds 15 to 20 knots. Partly cloudy. Waves 3 to
6 feet subsiding to 2 to 4 feet. Waves occasionally around
7 feet.
.SATURDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. Mainly clear, then becoming partly cloudy. Waves 3 to
5 feet subsiding to 2 to 4 feet. Waves occasionally around
6 feet.

$$

LOZ043-044-160900-
Hamlin Beach to Mexico Bay along Lake Ontario
including Irondequoit Bay-
1003 PM EDT Mon Jun 15 2026

.REST OF TONIGHT...Southwest winds 5 to 10 knots. Mainly clear
late this evening, then becoming partly cloudy. Waves 1 to
3 feet.
.TUESDAY...Southwest winds 5 to 10 knots. Mostly sunny. Waves
1 foot or less.
.TUESDAY NIGHT...Southeast winds 10 knots or less becoming south.
A chance of showers overnight. Waves 1 foot or less.
.WEDNESDAY...South winds 5 to 10 knots becoming southwest.
Showers likely in the morning, then showers likely with a chance
of thunderstorms in the afternoon. Waves 1 foot or less.
.WEDNESDAY NIGHT...South winds 5 to 10 knots becoming southeast
and increasing to 15 to 20 knots. A chance of showers in the
evening, then showers overnight. Waves 1 foot or less building to
1 to 3 feet.
.THURSDAY...South winds to 30 knots becoming west and diminishing
to 15 to 20 knots. Showers with a chance of thunderstorms during
the day, then a chance of showers and thunderstorms Thursday
night. Waves 3 to 5 feet building to 5 to 8 feet. Waves
occasionally around 10 feet.
.FRIDAY...West winds 15 to 20 knots. Partly cloudy. Waves 5 to
8 feet subsiding to 3 to 6 feet. Waves occasionally around
10 feet.
.SATURDAY...West winds 15 to 25 knots. Mainly clear, then
becoming partly cloudy. Waves 4 to 7 feet subsiding to 3 to
5 feet. Waves occasionally around 9 feet.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 62 degrees.

$$

LOZ045-160900-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
1003 PM EDT Mon Jun 15 2026

.REST OF TONIGHT...West winds 5 to 10 knots becoming southwest.
Mainly clear late this evening, then becoming partly cloudy.
Waves 1 to 3 feet.
.TUESDAY...South winds 5 to 15 knots becoming southwest. Sunny.
Waves 2 feet or less.
.TUESDAY NIGHT...South winds 5 to 15 knots. Mainly clear in the
evening, then becoming mostly cloudy. Waves 2 feet or less.
.WEDNESDAY...South winds 5 to 15 knots. Showers likely in the
morning, then showers likely with a chance of thunderstorms in
the afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...South winds 5 to 15 knots becoming southeast
15 to 20 knots. A chance of showers in the evening, then showers
likely overnight. Waves 1 to 3 feet.
.THURSDAY...South winds to 30 knots becoming southwest 15 to
25 knots. Showers with a chance of thunderstorms during the day,
then a chance of showers and thunderstorms Thursday night. Waves
5 to 9 feet. Waves occasionally around 11 feet.
.FRIDAY...West winds 15 to 25 knots. Partly cloudy. Waves 5 to
8 feet subsiding to 3 to 6 feet. Waves occasionally around
10 feet.
.SATURDAY...West winds 15 to 25 knots. A chance of showers. Waves
4 to 7 feet subsiding to 3 to 5 feet. Waves occasionally around
9 feet.

Winds and waves higher in and near thunderstorms.

$$

Radar