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

29°F

-2°C

Humidity 54%
Wind Speed W 14 G 21 mph
Barometer 30.45 in (1034.4 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 28 Mar 5:56 pm EDT
Extended Forecast for

3 Miles SW Sinclairville NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. West wind 6 to 13 mph becoming south after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 51. Southwest wind 7 to 14 mph.

    High: 51 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39. South wind 6 to 8 mph.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 57. Southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 50. Southwest wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 2pm. High near 67. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 38. Southwest wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    Low: 38 °F

    Showers

  • Wednesday

    Wednesday: A chance of rain showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. West wind around 9 mph. Chance of precipitation is 50%.

    High: 46 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 25. West wind 6 to 13 mph becoming south after midnight.
Sunday
Partly sunny, with a high near 51. Southwest wind 7 to 14 mph.
Sunday Night
Mostly cloudy, with a low around 39. South wind 6 to 8 mph.
Monday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 57. Southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 50. Southwest wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers, with thunderstorms also possible after 2pm. High near 67. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 38. Southwest wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Wednesday
A chance of rain showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. West wind around 9 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 49. Chance of precipitation is 40%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Saturday
A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Sinclairville NY
 42.22°N 79.3°W (Elev. 1539 ft)
Last Update:
3:58 pm EDT Mar 28, 2026
Forecast Valid:
6pm EDT Mar 28, 2026-6pm EDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation