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

64°F

18°C

Humidity 87%
Wind Speed SE 5 mph
Barometer 30.14 in (1020.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 15 Jun 11:53 pm EDT
Extended Forecast for

Hammondsport NY

  • Overnight

    Overnight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 77 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 76. South wind 6 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Juneteenth

    Juneteenth: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Thursday Night

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

    Low: 60 °F

    Showers
    Likely then
    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 59. Calm wind.
Monday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming south 5 to 7 mph in the afternoon.
Monday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 20%.
Tuesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 76. South wind 6 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Juneteenth
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hammondsport NY
 42.41°N 77.23°W (Elev. 801 ft)
Last Update:
9:32 pm EDT Jun 15, 2025
Forecast Valid:
12am 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