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

54°F

12°C

Humidity 80%
Wind Speed Calm
Barometer 30.21 in (1022.9 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Sep 1:56 am EDT
Extended Forecast for

3 Miles NNE Sinclairville NY

  • Overnight

    Overnight: Mostly clear, with a low around 47. East wind around 7 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74. East wind 6 to 9 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. Southeast wind 7 to 9 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Mostly sunny, with a high near 78. South wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 59. South wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 72. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 58. Southwest wind around 6 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 71. West wind 6 to 8 mph. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 47. East wind around 7 mph.
Saturday
Sunny, with a high near 74. East wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 53. Southeast wind 7 to 9 mph.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 78. South wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers and thunderstorms before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 59. South wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 72. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 58. Southwest wind around 6 mph. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 71. West wind 6 to 8 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Sinclairville NY
 42.31°N 79.23°W (Elev. 1591 ft)
Last Update:
1:36 am EDT Sep 20, 2025
Forecast Valid:
2am EDT Sep 20, 2025-6pm EDT Sep 26, 2025
 
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