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.

Overcast

63°F

17°C

Humidity 84%
Wind Speed SE 9 mph
Barometer 30.13 in (1019.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 Jun 7:53 am EDT
Extended Forecast for

Hammondsport NY

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 76. South wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then scattered showers. Low around 66. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers then
    Scattered
    Showers

  • Wednesday

    Wednesday: Isolated showers before 11am, then isolated showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. West wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 86 °F

    Isolated
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms between 8pm and 11pm, then scattered showers after 11pm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.

    Low: 58 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.
Tonight
A chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 76. South wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then scattered showers. Low around 66. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Isolated showers before 11am, then isolated showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. West wind 5 to 7 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms between 8pm and 11pm, then scattered showers after 11pm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Juneteenth
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Thursday Night
Scattered showers and thunderstorms before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 56.
Saturday
A chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. 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:
3:04 am EDT Jun 16, 2025
Forecast Valid:
8am EDT Jun 16, 2025-6pm EDT Jun 22, 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