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

41°F

5°C

Humidity 86%
Wind Speed Calm
Barometer 30.06 in (1018.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 6 Oct 10:53 pm EDT
Extended Forecast for

Waterloo NY

  • Tonight

    Tonight: Mostly clear, with a low around 38. South wind 3 to 6 mph.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 4am. Mostly cloudy, with a low around 50. Southwest wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 7am. Mostly sunny, with a high near 65. West wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. West wind 3 to 5 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 38. South wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 69. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
A chance of showers after 4am. Mostly cloudy, with a low around 50. Southwest wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers, mainly before 7am. Mostly sunny, with a high near 65. West wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 42. West wind 3 to 5 mph.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Columbus Day
Partly sunny, with a high near 68.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
A chance of showers. Partly sunny, with a high near 67. 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:
10:13 pm EDT Oct 6, 2026
Forecast Valid:
11pm EDT Oct 6, 2026-6pm EDT Oct 13, 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