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.

Fair

68°F

20°C

Humidity 45%
Wind Speed N 8 G 20 mph
Barometer 30.23 in (1023.6 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 25 Sep 3:53 pm EDT
Extended Forecast for

Williams Corner NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. North wind around 10 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. North wind 3 to 6 mph.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67. North wind 7 to 13 mph, with gusts as high as 24 mph.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54. North wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely, mainly between 2pm and 5pm, then showers likely after 5pm. Mostly cloudy, with a high near 62. North wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Showers likely before 8pm, then a chance of rain, mainly between 8pm and 2am. Cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Monday

    Monday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 66. North wind around 10 mph.
Tonight
Mostly clear, with a low around 50. North wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 67. North wind 7 to 13 mph, with gusts as high as 24 mph.
Saturday Night
Mostly cloudy, with a low around 54. North wind 8 to 11 mph, with gusts as high as 22 mph.
Sunday
Rain likely, mainly between 2pm and 5pm, then showers likely after 5pm. Mostly cloudy, with a high near 62. North wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Sunday Night
Showers likely before 8pm, then a chance of rain, mainly between 8pm and 2am. Cloudy, with a low around 55. Chance of precipitation is 60%.
Monday
Mostly cloudy, with a high near 63.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Mostly cloudy, with a high near 68.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Mostly cloudy, with a low around 59.
Thursday
Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williams Corner NY
 42.72°N 77.26°W (Elev. 797 ft)
Last Update:
2:30 pm EDT Sep 25, 2026
Forecast Valid:
4pm EDT Sep 25, 2026-6pm EDT Oct 1, 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