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

Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Current conditions at

Rochester, Greater Rochester International Airport (KROC)

Lat: 43.12°NLon: 77.68°WElev: 558ft.

Fair

61°F

16°C

Humidity 93%
Wind Speed Calm
Barometer 30.15 in (1021.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 15 Aug 3:54 am EDT
Extended Forecast for

3 Miles W Mendon NY

  • Today

    Today: Sunny, with a high near 87. Calm wind becoming east around 6 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 90. Calm wind becoming west around 6 mph in the afternoon.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 66. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 55. Northeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75. Northeast wind 5 to 9 mph.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55. Northeast wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 87. Calm wind becoming east around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 90. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 66. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 55. Northeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 75. Northeast wind 5 to 9 mph.
Monday Night
Mostly cloudy, with a low around 55. Northeast wind around 6 mph becoming calm in the evening.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Mendon NY
 42.99°N 77.57°W (Elev. 617 ft)
Last Update:
1:36 am EDT Aug 15, 2025
Forecast Valid:
4am EDT Aug 15, 2025-6pm EDT Aug 21, 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