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.

Fair

75°F

24°C

Humidity 69%
Wind Speed SE 6 mph
Barometer 30.05 in (1016.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Jul 8:53 pm EDT
Extended Forecast for

Hammondsport NY

  • Tonight

    Tonight: Widespread haze before midnight. Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Haze then
    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 91. Heat index values as high as 96. South wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 70. Light south wind. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 89. Heat index values as high as 96. West wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 62. West wind around 6 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Tonight
Widespread haze before midnight. Mostly clear, with a low around 69. Calm wind.
Wednesday
A chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 91. Heat index values as high as 96. South wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 70. Light south wind. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 89. Heat index values as high as 96. West wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 62. West wind around 6 mph. Chance of precipitation is 60%.
Friday
A slight chance of showers after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 54.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Hammondsport NY
 42.41°N 77.23°W (Elev. 801 ft)
Last Update:
6:39 pm EDT Jul 15, 2025
Forecast Valid:
9pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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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