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.

Light Snow Fog/Mist

25°F

-4°C

Humidity 92%
Wind Speed Calm
Barometer 29.98 in (1016.5 mb)
Dewpoint 23°F (-5°C)
Visibility 1.25 mi
Last update 2 Dec 4:53 am EST
Extended Forecast for

2 Miles SSE Glen Grove NY

Winter Weather Advisory until December 2, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 2, 06:00pm

    NOW until 6:00pm Tue

    Winter Weather Advisory

  • Overnight

    Low: 19 °F

    Snow

  • Tuesday

    Tuesday: Snow, mainly before 1pm, then a slight chance of snow showers after 4pm. High near 33. South wind 5 to 8 mph becoming light and variable. Chance of precipitation is 100%. New snow accumulation of around 3 inches.

    High: 33 °F

    Snow then
    Snow Likely

  • Tuesday Night

    Tuesday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 19. Northwest wind 6 to 8 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 34. Southwest wind 3 to 8 mph.

    High: 34 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 23. Southwest wind around 9 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A chance of snow showers. Mostly cloudy, with a high near 29. Chance of precipitation is 50%.

    High: 29 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

Detailed Forecast

Overnight
Snow. Low around 19. South wind around 7 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.
Tuesday
Snow, mainly before 1pm, then a slight chance of snow showers after 4pm. High near 33. South wind 5 to 8 mph becoming light and variable. Chance of precipitation is 100%. New snow accumulation of around 3 inches.
Tuesday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 19. Northwest wind 6 to 8 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday
Partly sunny, with a high near 34. Southwest wind 3 to 8 mph.
Wednesday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 23. Southwest wind around 9 mph. Chance of precipitation is 20%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 29. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 7.
Friday
Mostly sunny, with a high near 27.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly cloudy, with a high near 35.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Glen Grove NY
 42.42°N 77.16°W (Elev. 1319 ft)
Last Update:
6:13 pm EST Dec 1, 2025
Forecast Valid:
4am EST Dec 2, 2025-6pm EST Dec 8, 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