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.

Overcast

45°F

7°C

Humidity 93%
Wind Speed NW 5 mph
Barometer 29.90 in (1012.8 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 15 May 3:53 am EDT
Extended Forecast for

Porter Corner NY

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 63. Northwest wind 10 to 13 mph.

    High: 63 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 45. Light and variable wind becoming southwest 5 to 7 mph in the evening.

    Low: 45 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: A chance of showers after 2pm. Increasing clouds, with a high near 77. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.

    High: 77 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 56. West wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 76. Northwest wind around 6 mph.

    High: 76 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 63. Northwest wind 10 to 13 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 45. Light and variable wind becoming southwest 5 to 7 mph in the evening.
Saturday
A chance of showers after 2pm. Increasing clouds, with a high near 77. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 56. West wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 76. Northwest wind around 6 mph.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 64.
Tuesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
Showers likely. Partly sunny, with a high near 77. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Porter Corner NY
 42.54°N 77.02°W (Elev. 1342 ft)
Last Update:
2:30 am EDT May 15, 2026
Forecast Valid:
4am EDT May 15, 2026-6pm EDT May 21, 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