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.

Partly Cloudy

70°F

21°C

Humidity 79%
Wind Speed NW 6 mph
Barometer 29.92 in (1012.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 26 Jul 8:56 pm EDT
Extended Forecast for

Youngsville PA

  • Tonight

    Tonight: Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Areas Fog

  • Monday

    Monday: Scattered showers and thunderstorms, mainly after 3pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Areas Fog
    then
    Scattered
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms, mainly before 11pm, then showers and possibly a thunderstorm after 4am. Low around 62. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 79. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 60. Calm wind.
Monday
Scattered showers and thunderstorms, mainly after 3pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms, mainly before 11pm, then showers and possibly a thunderstorm after 4am. Low around 62. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm. High near 79. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 82.
Friday Night
Mostly cloudy, with a low around 60.
Saturday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Youngsville PA
 41.85°N 79.33°W (Elev. 1312 ft)
Last Update:
8:11 pm EDT Jul 26, 2026
Forecast Valid:
9pm EDT Jul 26, 2026-6pm EDT Aug 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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