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

31°F

-1°C

Humidity 89%
Wind Speed W 18 G 24 mph
Barometer 29.38 in (995.4 mb)
Dewpoint 28°F (-2°C)
Visibility 1.25 mi
Wind Chill19°F (-7°C)
Last update 16 Mar 9:53 pm EDT
Extended Forecast for

Hammondsport NY

Wind Advisory March 16, 10:50pm until March 17, 08:00am
Winter Weather Advisory March 16, 10:50pm until March 17, 04:00am
Click here for hazard details and duration
Wind Advisory
Winter Weather Advisory
  •  
    Wind Advisory March 16, 10:50pm until March 17, 08:00am
    Winter Weather Advisory March 16, 10:50pm until March 17, 04:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 18 °F

    Heavy Snow

  • Tuesday

    Tuesday: A slight chance of snow showers between 9am and 1pm. Partly sunny, with a high near 28. West wind around 16 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 28 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers before 2am. Partly cloudy, with a low around 14. West wind 3 to 8 mph. Chance of precipitation is 20%.

    Low: 14 °F

    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 37. Calm wind becoming south around 6 mph in the afternoon.

    High: 37 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27. South wind around 6 mph.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain after 2pm. Mostly cloudy, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.

    High: 49 °F

    Chance Rain

Detailed Forecast

Tonight
Snow, mainly before 1am. The snow could be heavy at times. Low around 18. Southwest wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of around 3 inches.
Tuesday
A slight chance of snow showers between 9am and 1pm. Partly sunny, with a high near 28. West wind around 16 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of snow showers before 2am. Partly cloudy, with a low around 14. West wind 3 to 8 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 37. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 27. South wind around 6 mph.
Thursday
A slight chance of rain after 2pm. Mostly cloudy, with a high near 45. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 40%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hammondsport NY
 42.41°N 77.23°W (Elev. 801 ft)
Last Update:
10:31 pm EDT Mar 16, 2026
Forecast Valid:
10pm EDT Mar 16, 2026-6pm EDT Mar 23, 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