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

Canandaigua Airport (KIUA)

Lat: 42.91°NLon: 77.33°WElev: 814ft.

Overcast

68°F

20°C

Humidity 91%
Wind Speed Calm
Barometer 30.28 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 17 Sep 2:35 am EDT
Extended Forecast for

Mendon NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 63. Light southwest wind.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly before 10am. Mostly cloudy, with a high near 76. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. Light west wind.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. West wind 5 to 9 mph becoming north in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. East wind 3 to 7 mph.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Showers, mainly after 2am. Low around 54. Southeast wind 3 to 6 mph. Chance of precipitation is 80%.

    Low: 54 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 67. East wind 5 to 9 mph becoming north in the morning. Chance of precipitation is 80%.

    High: 67 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 63. Light southwest wind.
Thursday
A chance of showers, mainly before 10am. Mostly cloudy, with a high near 76. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 56. Light west wind.
Friday
Mostly sunny, with a high near 71. West wind 5 to 9 mph becoming north in the afternoon.
Friday Night
Mostly cloudy, with a low around 47. Calm wind.
Saturday
Partly sunny, with a high near 66. East wind 3 to 7 mph.
Saturday Night
Showers, mainly after 2am. Low around 54. Southeast wind 3 to 6 mph. Chance of precipitation is 80%.
Sunday
Showers, mainly before 2pm. High near 67. East wind 5 to 9 mph becoming north in the morning. Chance of precipitation is 80%.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 64.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 66.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendon NY
 43°N 77.51°W (Elev. 545 ft)
Last Update:
2:22 am EDT Sep 17, 2026
Forecast Valid:
2am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
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