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.

Overcast

71°F

22°C

Humidity 96%
Wind Speed NW 5 mph
Barometer 30.27 in (1024.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 17 Sep 11:56 am EDT
Extended Forecast for

Sinclairville NY

  • This Afternoon

    This Afternoon: A chance of showers, mainly after 4pm. Cloudy, with a high near 74. Northwest wind 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers, mainly before 7pm. Patchy fog after midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance
    Showers then
    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 71. North wind 3 to 8 mph.

    High: 71 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. Northeast wind around 6 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly cloudy, with a high near 69. Southeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 11pm. Low around 57. Southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 68. Southwest wind 6 to 10 mph becoming north in the afternoon. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 50. Northeast wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of showers, mainly after 4pm. Cloudy, with a high near 74. Northwest wind 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers, mainly before 7pm. Patchy fog after midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 71. North wind 3 to 8 mph.
Friday Night
Mostly cloudy, with a low around 50. Northeast wind around 6 mph becoming calm in the evening.
Saturday
A chance of showers after 2pm. Mostly cloudy, with a high near 69. Southeast wind around 6 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 11pm. Low around 57. Southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 68. Southwest wind 6 to 10 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. Northeast wind 7 to 10 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 66.
Monday Night
A chance of showers after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sinclairville NY
 42.27°N 79.27°W (Elev. 1371 ft)
Last Update:
9:57 am EDT Sep 17, 2026
Forecast Valid:
12pm 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