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.

Partly Cloudy

73°F

23°C

Humidity 40%
Wind Speed S 5 mph
Barometer 29.76 in (1007.3 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 16 Jun 5:53 pm EDT
Extended Forecast for

Waterloo NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Calm wind becoming south around 6 mph after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. South wind 7 to 9 mph becoming west in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers, with thunderstorms also possible after 5am. Low around 60. Light and variable wind becoming southeast 6 to 11 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Mostly Cloudy
    then Showers

  • Thursday

    Thursday: Showers and thunderstorms before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 80. Breezy, with a south wind 17 to 21 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 58. West wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 30%.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 56. Calm wind becoming south around 6 mph after midnight.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. South wind 7 to 9 mph becoming west in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers, with thunderstorms also possible after 5am. Low around 60. Light and variable wind becoming southeast 6 to 11 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 80. Breezy, with a south wind 17 to 21 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 58. West wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Juneteenth
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 71. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 74.
Sunday Night
A chance of showers. Partly cloudy, with a low around 55. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Monday Night
A chance of thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo NY
 42.9°N 76.87°W (Elev. 499 ft)
Last Update:
2:30 pm EDT Jun 16, 2026
Forecast Valid:
6pm EDT Jun 16, 2026-6pm EDT Jun 23, 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