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.

A Few Clouds

71°F

22°C

Humidity 51%
Wind Speed S 7 mph
Barometer 30.27 in (1025.2 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 29 Aug 12:56 pm EDT
Extended Forecast for

7 Miles S Youngsville PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. Light south wind.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers after 11am. Mostly sunny during the morning, then cloudy during the afternoon, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely before 8am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. Light south wind.
Tonight
Mostly cloudy, with a low around 58. Calm wind.
Sunday
A slight chance of showers after 11am. Mostly sunny during the morning, then cloudy during the afternoon, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely before 8am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Partly sunny, with a high near 88.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Wednesday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S Youngsville PA
 41.77°N 79.32°W (Elev. 1440 ft)
Last Update:
12:11 pm EDT Aug 29, 2026
Forecast Valid:
1pm EDT Aug 29, 2026-6pm EDT Sep 4, 2026
 
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