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.

Light Rain

46°F

8°C

Humidity 66%
Wind Speed NW 8 mph
Barometer 30.00 in (1016.2 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 9 Nov 5:53 pm EST
Extended Forecast for

Hammondsport NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. West wind 3 to 7 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 63. Southwest wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    High: 63 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 37. West wind 3 to 8 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: A slight chance of rain after 1pm. Partly sunny, with a high near 60. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.

    High: 60 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

  • Thursday

    Thursday: Rain. High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely before 1am, then rain and snow likely. Cloudy, with a low around 31. Chance of precipitation is 70%.

    Low: 31 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 50%.

    High: 43 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Rain and snow likely before 4am, then a chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. West wind 3 to 7 mph.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 63. Southwest wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Tuesday Night
Increasing clouds, with a low around 37. West wind 3 to 8 mph.
Veterans Day
A slight chance of rain after 1pm. Partly sunny, with a high near 60. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.
Wednesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%.
Thursday
Rain. High near 53. Chance of precipitation is 80%.
Thursday Night
Rain likely before 1am, then rain and snow likely. Cloudy, with a low around 31. Chance of precipitation is 70%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 50%.
Friday Night
Rain and snow likely before 4am, then a chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Saturday
A chance of snow, mixing with rain after 10am, then gradually ending. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 52.
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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 ft)
Last Update:
1:30 pm EST Nov 9, 2026
Forecast Valid:
6pm EST Nov 9, 2026-6pm EST Nov 16, 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