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.

Fog

66°F

19°C

Humidity NA
Wind Speed Calm
Barometer 30.26 in (1024.4 mb)
Dewpoint N/A
Visibility 0.25 mi
Last update 17 Sep 4:56 am EDT
Extended Forecast for

3 Miles NNE Sugar Grove PA

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Patchy fog. Otherwise, mostly cloudy, with a low around 66. Light west wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 8am, then a chance of showers. Patchy fog before 10am. High near 79. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55. Light north wind.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74. North wind 3 to 7 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. North wind around 6 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly cloudy, with a high near 72. Southeast wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 2am. Low around 58. Southeast wind around 7 mph. Chance of precipitation is 90%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 71. Southwest wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Patchy fog. Otherwise, mostly cloudy, with a low around 66. Light west wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm before 8am, then a chance of showers. Patchy fog before 10am. High near 79. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 55. Light north wind.
Friday
Mostly sunny, with a high near 74. North wind 3 to 7 mph.
Friday Night
Mostly cloudy, with a low around 49. North wind around 6 mph becoming calm in the evening.
Saturday
A chance of showers after 2pm. Mostly cloudy, with a high near 72. Southeast wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers, with thunderstorms also possible after 2am. Low around 58. Southeast wind around 7 mph. Chance of precipitation is 90%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 71. Southwest wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 70%.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 68.
Monday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Sugar Grove PA
 42.03°N 79.3°W (Elev. 1398 ft)
Last Update:
3:57 am EDT Sep 17, 2026
Forecast Valid:
5am EDT Sep 17, 2026-6pm EDT Sep 23, 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