Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. 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. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Fair

84°F

29°C

Humidity	48%
Wind Speed	SE 5 mph
Barometer	29.97 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	21 Jun 5:35 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Ontario NY

Heat Advisory June 22, 12:00pm until June 24, 06:00pm

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 76 °F
Slight Chance
T-storms
Sunday
High: 90 °F
Heavy Rain
then Mostly
Sunny
Sunday Night
Low: 75 °F
Mostly Clear
Monday
High: 94 °F
Hot
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 91 °F
Hot
Tuesday Night
Low: 68 °F
Partly Cloudy
Wednesday
High: 80 °F
Partly Sunny
then Chance
T-storms
Wednesday Night
Low: 65 °F
Chance
T-storms then
Chance
Showers

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 76. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Sunday

A chance of showers and thunderstorms, mainly before 7am. Some of the storms could produce heavy rainfall. Mostly sunny and hot, with a high near 90. Heat index values as high as 100. West wind 9 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Mostly clear, with a low around 75. Southwest wind around 8 mph.

Monday

Sunny and hot, with a high near 94. Heat index values as high as 103. West wind 7 to 9 mph.

Monday Night

Mostly clear, with a low around 74. Southwest wind around 8 mph.

Tuesday

Sunny and hot, with a high near 91. West wind around 10 mph.

Tuesday Night

Partly cloudy, with a low around 68. West wind 5 to 7 mph.

Wednesday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. North wind 5 to 7 mph. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.

Thursday

A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 50%.

Thursday Night

A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.

Friday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Saturday

A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.