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

48°F

9°C

Humidity 54%
Wind Speed NE 10 mph
Barometer 30.31 in (1027.5 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 21 May 11:56 pm EDT
Extended Forecast for

Jamestown NY

  • Overnight

    Overnight: Mostly clear, with a low around 40. East wind around 6 mph.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 66. Southeast wind 7 to 10 mph.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Cloudy, with a low around 45. Southeast wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 2pm. High near 56. Southeast wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 56 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 47. Southeast wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 71. South wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: A chance of showers before 2pm. Mostly cloudy, with a high near 73. Light and variable wind. Chance of precipitation is 30%.

    High: 73 °F

    Chance
    Showers

  • Monday Night

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

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 40. East wind around 6 mph.
Friday
Partly sunny, with a high near 66. Southeast wind 7 to 10 mph.
Friday Night
Showers likely, mainly after 2am. Cloudy, with a low around 45. Southeast wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers, with thunderstorms also possible after 2pm. High near 56. Southeast wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 47. Southeast wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 71. South wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 40%.
Memorial Day
A chance of showers before 2pm. Mostly cloudy, with a high near 73. Light and variable wind. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jamestown NY
 42.09°N 79.24°W (Elev. 1430 ft)
Last Update:
9:57 pm EDT May 21, 2026
Forecast Valid:
12am EDT May 22, 2026-6pm EDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation