National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

Overcast

7°F

-14°C

Humidity 66%
Wind Speed SW 5 mph
Barometer 29.98 in (1017.5 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 28 Jan 9:53 pm EST
Extended Forecast for

Hammondsport NY

Cold Weather Advisory January 28, 11:00pm until January 29, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 3. Wind chill values as low as -7. Southwest wind 3 to 6 mph.

    Low: 3 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of snow showers after noon. Mostly sunny, with a high near 18. Wind chill values as low as -8. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 18 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -3. Wind chill values as low as -14. West wind around 6 mph.

    Low: -3 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 12. Wind chill values as low as -15. Northwest wind 6 to 8 mph.

    High: 12 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -5. West wind around 5 mph becoming calm in the evening.

    Low: -5 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 16.

    High: 16 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 18.

    High: 18 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 3. Wind chill values as low as -7. Southwest wind 3 to 6 mph.
Thursday
A slight chance of snow showers after noon. Mostly sunny, with a high near 18. Wind chill values as low as -8. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around -3. Wind chill values as low as -14. West wind around 6 mph.
Friday
Partly sunny, with a high near 12. Wind chill values as low as -15. Northwest wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around -5. West wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 16.
Saturday Night
Mostly cloudy, with a low around 3.
Sunday
Partly sunny, with a high near 18.
Sunday Night
Partly cloudy, with a low around 9.
Monday
Mostly sunny, with a high near 29.
Monday Night
Mostly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Partly sunny, with a high near 28.
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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:
5:52 pm EST Jan 28, 2026
Forecast Valid:
10pm EST Jan 28, 2026-6pm EST Feb 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