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

Hazardous Weather Conditions

Current conditions at

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

Fair

32°F

0°C

Humidity 88%
Wind Speed SE 5 mph
Barometer 29.83 in (1010.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 15 Nov 7:53 am EST
Extended Forecast for

Waterloo NY

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 55. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Mostly Cloudy
    then Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 4am, then a chance of showers. Low around 39. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Rain showers likely before 1pm, then a chance of snow showers. Mostly cloudy, with a high near 42. Breezy, with a west wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 42 °F

    Breezy.
    Showers
    Likely then
    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Snow showers likely. Cloudy, with a low around 30. West wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 30 °F

    Snow Showers
    Likely

  • Monday

    Monday: A chance of snow showers before 4pm, then a chance of rain and snow showers. Cloudy, with a high near 38. West wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

    High: 38 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: A chance of rain and snow showers before 7pm, then a slight chance of snow showers between 7pm and 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 55. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 4am, then a chance of showers. Low around 39. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Rain showers likely before 1pm, then a chance of snow showers. Mostly cloudy, with a high near 42. Breezy, with a west wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
Snow showers likely. Cloudy, with a low around 30. West wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Monday
A chance of snow showers before 4pm, then a chance of rain and snow showers. Cloudy, with a high near 38. West wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Monday Night
A chance of rain and snow showers before 7pm, then a slight chance of snow showers between 7pm and 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Mostly cloudy, with a high near 47.
Thursday Night
Showers likely. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Friday
Showers likely. Cloudy, with a high near 50. Chance of precipitation is 70%.
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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:
4:57 am EST Nov 15, 2025
Forecast Valid:
8am EST Nov 15, 2025-6pm EST Nov 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