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

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

Fair

37°F

3°C

Humidity 57%
Wind Speed S 17 G 24 mph
Barometer 29.79 in (1009.7 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 13 Jan 11:53 am EST
Extended Forecast for

Waterloo NY

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 43. South wind 10 to 13 mph.

    High: 43 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers before 8pm. Mostly cloudy, with a low around 38. South wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 1pm, mixing with snow after 4pm. Cloudy, with a high near 43. Southwest wind around 7 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 43 °F

    Cloudy then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 10pm. Cloudy, with a low around 15. West wind 6 to 11 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 15 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 18. West wind 11 to 14 mph. Chance of precipitation is 50%.

    High: 18 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow before 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 20%.

    Low: 12 °F

    Slight Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow after 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.

    High: 36 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 43. South wind 10 to 13 mph.
Tonight
A slight chance of showers before 8pm. Mostly cloudy, with a low around 38. South wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain after 1pm, mixing with snow after 4pm. Cloudy, with a high near 43. Southwest wind around 7 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow likely, becoming all snow after 10pm. Cloudy, with a low around 15. West wind 6 to 11 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Thursday
A chance of snow. Mostly cloudy, with a high near 18. West wind 11 to 14 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of snow before 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 28.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
A chance of snow after 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Saturday Night
A chance of snow before 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 16.
M.L.King Day
A chance of snow. Mostly cloudy, with a high near 23. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo NY
 42.9°N 76.87°W (Elev. 499 ft)
Last Update:
11:28 am EST Jan 13, 2026
Forecast Valid:
12pm EST Jan 13, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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