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.

Overcast

61°F

16°C

Humidity 81%
Wind Speed SW 8 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 25 Aug 5:53 am EDT
Extended Forecast for

Willow Grove NY

  • Today

    Today: Scattered showers, mainly before 1pm. Partly sunny, with a high near 72. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Scattered
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind 3 to 6 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. South wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. South wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 81 °F

    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers after 2pm. Mostly sunny, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Mostly clear, with a low around 53. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers, mainly before 1pm. Partly sunny, with a high near 72. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly clear, with a low around 54. Light and variable wind.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 62. South wind around 6 mph.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. South wind 8 to 10 mph. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly clear, with a low around 53. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 62.
Monday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Willow Grove NY
 42.61°N 77.07°W (Elev. 784 ft)
Last Update:
5:59 am EDT Aug 25, 2026
Forecast Valid:
6am EDT Aug 25, 2026-6pm EDT Aug 31, 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