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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update 19 Feb 6:01 am EST
Extended Forecast for

Hammondsport NY

Dense Fog Advisory until February 19, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until February 19, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Today

    High: 49 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers before 1am, then a chance of showers after 2am. Mostly cloudy, with a low around 35. South wind 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Rain showers likely, possibly mixed with snow showers and sleet before 7am, then rain, possibly mixed with snow showers between 7am and 10am, then rain showers after 10am. High near 46. South wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow and sleet accumulation expected.

    High: 46 °F

    Wintry Mix
    then Showers

  • Friday Night

    Friday Night: A chance of rain showers before 10pm, then a chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 30. West wind around 6 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 40. West wind around 6 mph.

    High: 40 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 20%.

    Low: 25 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Sunday

    Sunday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.

    High: 39 °F

    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of snow showers. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

    Low: 24 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Areas of dense fog before 7am. Otherwise, mostly cloudy, with a high near 49. Calm wind becoming south around 5 mph in the afternoon.
Tonight
A slight chance of showers before 1am, then a chance of showers after 2am. Mostly cloudy, with a low around 35. South wind 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain showers likely, possibly mixed with snow showers and sleet before 7am, then rain, possibly mixed with snow showers between 7am and 10am, then rain showers after 10am. High near 46. South wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow and sleet accumulation expected.
Friday Night
A chance of rain showers before 10pm, then a chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 30. West wind around 6 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
Mostly cloudy, with a high near 40. West wind around 6 mph.
Saturday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 20%.
Sunday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Monday
A chance of snow showers before 1pm. Partly sunny, with a high near 34. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 30.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
A chance of rain and snow showers. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
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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:
6:05 am EST Feb 19, 2026
Forecast Valid:
6am EST Feb 19, 2026-6pm EST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation