National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Rochester, Greater Rochester International Airport (KROC)

Lat: 43.12°NLon: 77.68°WElev: 558ft.

Mostly Cloudy

84°F

29°C

Humidity 55%
Wind Speed SW 12 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 21 Jun 5:54 pm EDT
Extended Forecast for

Avon NY

Heat Advisory June 22, 12:00pm until June 24, 06:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 77. South wind 8 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 9am. Mostly sunny and hot, with a high near 91. Heat index values as high as 102. West wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. Southwest wind 7 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. Heat index values as high as 104. West wind 8 to 13 mph.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. Southwest wind around 8 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 93. West wind 9 to 13 mph.

    High: 93 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. West wind 5 to 8 mph becoming calm after midnight.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. Northwest wind 3 to 7 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 77. South wind 8 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms before 9am. Mostly sunny and hot, with a high near 91. Heat index values as high as 102. West wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 77. Southwest wind 7 to 10 mph.
Monday
Sunny and hot, with a high near 95. Heat index values as high as 104. West wind 8 to 13 mph.
Monday Night
Mostly clear, with a low around 76. Southwest wind around 8 mph.
Tuesday
Sunny and hot, with a high near 93. West wind 9 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 70. West wind 5 to 8 mph becoming calm after midnight.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Northwest wind 3 to 7 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
Showers likely, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Avon NY
 42.9°N 77.77°W (Elev. 597 ft)
Last Update:
4:36 pm EDT Jun 21, 2025
Forecast Valid:
6pm EDT Jun 21, 2025-6pm EDT Jun 28, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation