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

56°F

13°C

Humidity 97%
Wind Speed Calm
Barometer 29.94 in (1013.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 27 Sep 11:53 pm EDT
Extended Forecast for

Hammondsport NY

  • Overnight

    Overnight: Cloudy, with a low around 54. North wind around 6 mph.

    Low: 54 °F

    Cloudy

  • Monday

    Monday: Patchy fog before 9am. Otherwise, cloudy, with a high near 67. North wind around 6 mph.

    High: 67 °F

    Patchy Fog
    then Cloudy

  • Monday Night

    Monday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 54. Light northwest wind.

    Low: 54 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 71. North wind 3 to 5 mph.

    High: 71 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Cloudy, with a low around 54. North wind around 6 mph.
Monday
Patchy fog before 9am. Otherwise, cloudy, with a high near 67. North wind around 6 mph.
Monday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 54. Light northwest wind.
Tuesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 71. North wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 52. Calm wind.
Wednesday
Partly sunny, with a high near 77.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 80.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 66.
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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:
2:30 pm EDT Sep 27, 2026
Forecast Valid:
12am EDT Sep 28, 2026-6pm EDT Oct 4, 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