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.

Fog

70°F

21°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 30.11 in
Dewpoint 70°F (21°C)
Visibility 0.25 mi
Last update 15 Jul 5:35 am EDT
Extended Forecast for

Waterloo NY

  • Today

    Today: Widespread haze after 11am. Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Haze

  • Tonight

    Tonight: Widespread haze before 1am. Mostly clear, with a low around 70. Light and variable wind.

    Low: 70 °F

    Haze

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 89. Heat index values as high as 96. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 5am, then a slight chance of showers. Cloudy, then gradually becoming partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. West wind 5 to 8 mph. Chance of precipitation is 70%.

    High: 89 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Friday Night

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

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Widespread haze after 11am. Sunny, with a high near 89. Calm wind.
Tonight
Widespread haze before 1am. Mostly clear, with a low around 70. Light and variable wind.
Wednesday
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 89. Heat index values as high as 96. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 5am, then a slight chance of showers. Cloudy, then gradually becoming partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. West wind 5 to 8 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo NY
 42.9°N 76.87°W (Elev. 499 ft)
Last Update:
6:21 am EDT Jul 15, 2025
Forecast Valid:
6am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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