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

79°F

26°C

Humidity 36%
Wind Speed S 18 G 28 mph
Barometer 29.86 in (1010.7 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 May 2:53 pm EDT
Extended Forecast for

Altay NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. Southwest wind around 13 mph, with gusts as high as 24 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Mostly cloudy, with a low around 57. Southwest wind 6 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 77. West wind around 7 mph.

    High: 77 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. Southwest wind around 13 mph, with gusts as high as 24 mph.
Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Mostly cloudy, with a low around 57. Southwest wind 6 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 77. West wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight.
Monday
Mostly sunny, with a high near 86. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 78. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 57.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altay NY
 42.43°N 77.01°W (Elev. 1545 ft)
Last Update:
2:30 pm EDT May 16, 2026
Forecast Valid:
3pm EDT May 16, 2026-6pm EDT May 22, 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