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

31°F

-1°C

Humidity 69%
Wind Speed SW 3 mph
Barometer 30.01 in (1017.2 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 7 Dec 3:53 am EST
Extended Forecast for

Hammondsport NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow showers before 4pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 36. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A slight chance of snow showers after midnight. Cloudy during the early evening, then gradual clearing, with a low around 13. West wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 13 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Monday

    Monday: A slight chance of snow showers before 1pm. Mostly sunny, with a high near 23. North wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 23 °F

    Slight Chance
    Snow Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 5. Calm wind becoming south around 5 mph after midnight.

    Low: 5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow showers after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 20%.

    High: 34 °F

    Partly Sunny
    then Slight
    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Showers. High near 41. Chance of precipitation is 90%.

    High: 41 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.

    Low: 25 °F

    Chance
    Showers then
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. Calm wind.
Sunday
A slight chance of snow showers before 4pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 36. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
A slight chance of snow showers after midnight. Cloudy during the early evening, then gradual clearing, with a low around 13. West wind 6 to 8 mph. Chance of precipitation is 20%.
Monday
A slight chance of snow showers before 1pm. Mostly sunny, with a high near 23. North wind 3 to 6 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 5. Calm wind becoming south around 5 mph after midnight.
Tuesday
A slight chance of snow showers after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 20%.
Tuesday Night
A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.
Wednesday
Showers. High near 41. Chance of precipitation is 90%.
Wednesday Night
A chance of rain showers before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.
Thursday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 14. Chance of precipitation is 40%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hammondsport NY
 42.41°N 77.23°W (Elev. 801 ft)
Last Update:
1:18 am EST Dec 7, 2025
Forecast Valid:
3am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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