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.

Fog

33°F

1°C

Humidity 96%
Wind Speed Calm
Barometer 29.89 in (1013.1 mb)
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Last update 18 Feb 6:53 am EST
Extended Forecast for

2 Miles SSW Branchport NY

Dense Fog Advisory until February 18, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until February 18, 08:00am

    NOW until 8:00am Wed

    Dense Fog Advisory

  • Today

    High: 37 °F

    Showers and
    Areas Dense
    Fog

  • Tonight

    Tonight: A chance of rain showers before 9pm, then a slight chance of freezing rain after 1am. Mostly cloudy, with a low around 31. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 43. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 43 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 34. Southeast wind 6 to 9 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday

    Friday: Showers. High near 42. Southeast wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 42 °F

    Showers

  • Friday Night

    Friday Night: A chance of rain showers, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Today
Showers. Areas of dense fog before 8am. High near 37. Calm wind becoming northeast around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
A chance of rain showers before 9pm, then a slight chance of freezing rain after 1am. Mostly cloudy, with a low around 31. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly cloudy, with a high near 43. Calm wind becoming southeast around 6 mph in the afternoon.
Thursday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 34. Southeast wind 6 to 9 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers. High near 42. Southeast wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Friday Night
A chance of rain showers, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 33. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Monday
Mostly cloudy, with a high near 29.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Partly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Branchport NY
 42.58°N 77.17°W (Elev. 1161 ft)
Last Update:
4:59 am EST Feb 18, 2026
Forecast Valid:
7am EST Feb 18, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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