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

51°F

11°C

Humidity 83%
Wind Speed Calm
Barometer 30.33 in (1027.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 11 Oct 12:53 am EDT
Extended Forecast for

Hammondsport NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. South wind around 6 mph.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers. High near 62. Southeast wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 11pm. Low around 52. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Showers then
    Slight Chance
    Showers

  • Columbus Day

    Columbus Day: Mostly cloudy, with a high near 70. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 70 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 54. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. South wind around 6 mph.
Sunday
Showers. High near 62. Southeast wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers, mainly before 11pm. Low around 52. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Columbus Day
Mostly cloudy, with a high near 70. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 54. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 20%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 50%.
Tuesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Wednesday
Mostly cloudy, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Partly sunny, with a high near 63.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly cloudy, with a high near 53. Chance of precipitation is 40%.
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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:
12:14 am EDT Oct 11, 2026
Forecast Valid:
1am EDT Oct 11, 2026-6pm EDT Oct 17, 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