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.

A Few Clouds

83°F

28°C

Humidity 48%
Wind Speed W 14 mph
Barometer 29.91 in (1011.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 27 Aug 2:53 pm EDT
Extended Forecast for

Dundee NY

Severe T-storm Watch until August 27, 09:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 27, 09:00pm

    NOW until 9:00pm Thu

    Severe T-storm Watch

  • This Afternoon

    High: 80 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 59. Light west wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Scattered
    Showers then
    Partly Cloudy

  • Friday

    Friday: Isolated showers before noon. Mostly sunny, with a high near 74. North wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 74 °F

    Isolated
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. North wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Light and variable wind.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 5pm, then scattered showers and thunderstorms after 5pm. Mostly cloudy, with a high near 80. West wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 59. Light west wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Isolated showers before noon. Mostly sunny, with a high near 74. North wind 3 to 7 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 53. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 77. Light and variable wind.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Monday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dundee NY
 42.51°N 76.97°W (Elev. 997 ft)
Last Update:
2:30 pm EDT Aug 27, 2026
Forecast Valid:
3pm EDT Aug 27, 2026-6pm EDT Sep 2, 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