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.

Mostly Cloudy

65°F

18°C

Humidity 87%
Wind Speed SW 3 mph
Barometer 30.14 in (1020.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 30 Aug 11:53 pm EDT
Extended Forecast for

Waterloo NYSimilar City Names

  • Overnight

    Overnight: A chance of showers, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 5am, then a slight chance of showers. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely

  • Tuesday

    Tuesday: 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. Mostly cloudy, with a high near 85. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely before 5am, then a slight chance of showers. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
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. Mostly cloudy, with a high near 85. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 81. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Partly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo NYSimilar City Names
 42.9°N 76.87°W (Elev. 499 ft)
Last Update:
6:50 pm EDT Aug 30, 2026
Forecast Valid:
12am EDT Aug 31, 2026-6pm EDT Sep 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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