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

40°F

4°C

Humidity 77%
Wind Speed S 13 mph
Barometer 29.71 in (1006.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 22 Mar 3:53 am EDT
Extended Forecast for

Hammondsport NY

  • Overnight

    Overnight: A slight chance of drizzle. Mostly cloudy, with a low around 37. South wind around 8 mph.

    Low: 37 °F

    Slight Chance
    Drizzle

  • Sunday

    Sunday: Showers. High near 63. Southwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 63 °F

    Showers

  • Sunday Night

    Sunday Night: Rain and snow showers likely before 3am, then a slight chance of snow showers after 4am. Cloudy, with a low around 28. North wind around 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Showers
    Likely then
    Slight Chance
    Snow Showers

  • Monday

    Monday: Mostly cloudy, with a high near 39. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 39 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. Northwest wind 3 to 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 8pm. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Overnight
A slight chance of drizzle. Mostly cloudy, with a low around 37. South wind around 8 mph.
Sunday
Showers. High near 63. Southwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain and snow showers likely before 3am, then a slight chance of snow showers after 4am. Cloudy, with a low around 28. North wind around 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 39. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 23. Northwest wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 51.
Wednesday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 50%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 38.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 43.
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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:
2:32 am EDT Mar 22, 2026
Forecast Valid:
4am EDT Mar 22, 2026-6pm EDT Mar 28, 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