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.

Mostly Cloudy

71°F

22°C

Humidity 61%
Wind Speed NW 9 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 25 Aug 5:53 pm EDT
Extended Forecast for

Penn Yan NY

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then becoming sunny, with a high near 80. Southwest wind around 6 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 62. South wind 6 to 8 mph.

    Low: 62 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Southwest wind around 10 mph, with gusts 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: 82 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 60. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. Northwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly cloudy through mid morning, then becoming sunny, with a high near 80. Southwest wind around 6 mph.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 62. South wind 6 to 8 mph.
Thursday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Southwest wind around 10 mph, with gusts 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.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 60. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Partly sunny, with a high near 83.
Monday Night
Mostly cloudy, with a low around 64.
Tuesday
Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Penn Yan NY
 42.65°N 77.06°W (Elev. 719 ft)
Last Update:
2:30 pm EDT Aug 25, 2026
Forecast Valid:
6pm EDT Aug 25, 2026-6pm EDT Sep 1, 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