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Hazardous Weather Conditions

Current conditions at

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

Fair

26°C

78°F

Humidity 76%
Wind Speed S 13 km/h
Barometer 1014.7 mb (29.99 in)
Dewpoint 21°C (70°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 13 Jul 1:53 am EDT
Extended Forecast for

Waterloo NY

Flood Watch July 13, 11:00am until July 14, 05:00am
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 23. South wind around 13 km/h.

    Low: 23 °C

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 31. Heat index values as high as 35. South wind 11 to 13 km/h. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 cm possible.

    High: 31 °C

    Scattered
    T-storms then
    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 21. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 1 and 2 cm possible.

    Low: 21 °C

    Heavy Rain
    then Chance
    Showers

  • Monday

    Monday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 29. Calm wind becoming west 5 to 8 km/h in the morning. Chance of precipitation is 20%.

    High: 29 °C

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Calm wind.

    Low: 19 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 32.

    High: 32 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22.

    Low: 22 °C

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 32. Chance of precipitation is 40%.

    High: 32 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.

    Low: 23 °C

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 23. South wind around 13 km/h.
Sunday
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 31. Heat index values as high as 35. South wind 11 to 13 km/h. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 cm possible.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 21. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 1 and 2 cm possible.
Monday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 29. Calm wind becoming west 5 to 8 km/h in the morning. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 19. Calm wind.
Tuesday
Sunny, with a high near 32.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 32. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 31. Chance of precipitation is 70%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 27. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 18. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo NY
 42.9°N 76.87°W (Elev. 499 m)
Last Update:
1:08 am EDT Jul 13, 2025
Forecast Valid:
2am EDT Jul 13, 2025-6pm EDT Jul 19, 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