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.

Fair

20°C

68°F

Humidity 42%
Wind Speed S 15 km/h
Barometer 1015.9 mb (30.01 in)
Dewpoint 7°C (44°F)
Visibility 16 km
Last update 16 May 10:53 am EDT
Extended Forecast for

Hammondsport NY

  • Today

    Today: Mostly sunny, with a high near 28. Southwest wind 14 to 18 km/h, with gusts as high as 35 km/h.

    High: 28 °C

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 14. Southwest wind 5 to 10 km/h. Chance of precipitation is 20%.

    Low: 14 °C

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 28. West wind 5 to 8 km/h.

    High: 28 °C

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14. Calm wind.

    Low: 14 °C

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32. Southwest wind 8 to 14 km/h.

    High: 32 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °C

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32.

    High: 32 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18.

    Low: 18 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.

    High: 28 °C

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 28. Southwest wind 14 to 18 km/h, with gusts as high as 35 km/h.
Tonight
A slight chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 14. Southwest wind 5 to 10 km/h. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 28. West wind 5 to 8 km/h.
Sunday Night
Partly cloudy, with a low around 14. Calm wind.
Monday
Sunny, with a high near 32. Southwest wind 8 to 14 km/h.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 8. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 18.
Thursday Night
Partly cloudy, with a low around 7.
Friday
Mostly sunny, with a high near 21.
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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 m)
Last Update:
6:23 am EDT May 16, 2026
Forecast Valid:
11am EDT May 16, 2026-6pm EDT May 22, 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