National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fair

66°F

19°C

Humidity 65%
Wind Speed N 8 mph
Barometer 30.20 in (1022.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 22 Jul 8:56 pm EDT
Extended Forecast for

3 Miles N Grand Valley PA

  • Tonight

    Tonight: Mostly clear, with a low around 54. Light east wind.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Southeast wind 3 to 6 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Calm wind becoming south around 5 mph after midnight.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Southwest wind 6 to 8 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 69. Southwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 83. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Light east wind.
Wednesday
Sunny, with a high near 85. Southeast wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 65. Calm wind becoming south around 5 mph after midnight.
Thursday
Sunny, with a high near 89. Southwest wind 6 to 8 mph.
Thursday Night
A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 69. Southwest wind around 5 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 83. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 64.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Grand Valley PA
 41.76°N 79.55°W (Elev. 1693 ft)
Last Update:
9:04 pm EDT Jul 22, 2025
Forecast Valid:
9pm EDT Jul 22, 2025-6pm EDT Jul 29, 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