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

70°F

21°C

Humidity 73%
Wind Speed N 3 mph
Barometer 30.19 in (1022.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Aug 9:56 pm EDT
Extended Forecast for

Warren South PA

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. South wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 65. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Monday Night

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

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 56. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Calm wind.
Saturday Night
Mostly cloudy, with a low around 63. Calm wind.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. South wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 65. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warren South PA
 41.84°N 79.16°W (Elev. 1198 ft)
Last Update:
8:11 pm EDT Aug 14, 2026
Forecast Valid:
10pm EDT Aug 14, 2026-6pm EDT Aug 21, 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