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.

Fog/Mist

55°F

13°C

Humidity 90%
Wind Speed Vrbl 3 mph
Barometer 29.97 in (1014.7 mb)
Dewpoint 52°F (11°C)
Visibility 6.00 mi
Last update 10 Mar 11:53 pm EDT
Extended Forecast for

Sampson NY

  • Overnight

    Overnight: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 45. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 67. South wind 13 to 17 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 33. Breezy, with a southwest wind 18 to 22 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 33 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Mostly cloudy, with a high near 37. Breezy, with a west wind 20 to 22 mph, with gusts as high as 32 mph.

    High: 37 °F

    Mostly Cloudy
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. West wind 6 to 14 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Rain likely, possibly mixed with snow, becoming all rain after 5pm. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 60%.

    High: 43 °F

    Rain/Snow
    Likely and
    Breezy

  • Friday Night

    Friday Night: Rain likely before 11pm, then a chance of snow between 11pm and 2am. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 60%.

    Low: 28 °F

    Breezy.
    Rain/Snow
    Likely then
    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 36. Breezy.

    High: 36 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: A chance of snow after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 45. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 67. South wind 13 to 17 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 33. Breezy, with a southwest wind 18 to 22 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly cloudy, with a high near 37. Breezy, with a west wind 20 to 22 mph, with gusts as high as 32 mph.
Thursday Night
Partly cloudy, with a low around 28. West wind 6 to 14 mph.
Friday
Rain likely, possibly mixed with snow, becoming all rain after 5pm. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 60%.
Friday Night
Rain likely before 11pm, then a chance of snow between 11pm and 2am. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 36. Breezy.
Saturday Night
A chance of snow after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Sunday
A chance of snow before 2pm, then a chance of rain and snow. Cloudy, with a high near 50. Chance of precipitation is 50%.
Sunday Night
Rain likely. Cloudy, with a low around 37. Windy. Chance of precipitation is 70%.
Monday
Rain and snow likely. Mostly cloudy, with a high near 49. Breezy. Chance of precipitation is 60%.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 21. Breezy. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sampson NY
 42.73°N 76.9°W (Elev. 525 ft)
Last Update:
12:02 am EDT Mar 11, 2026
Forecast Valid:
12am EDT Mar 11, 2026-6pm EDT Mar 17, 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