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Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Overcast

41°F

5°C

Humidity 79%
Wind Speed W 6 mph
Barometer 29.93 in (1015.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 30 Apr 8:56 pm EDT
Extended Forecast for

Sinclairville NY

Frost Advisory May 1, 12:00am until May 1, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, partly cloudy, with a low around 33. West wind 5 to 7 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Cloudy
    then Areas
    Frost

  • Friday

    Friday: Showers likely, mainly between 1pm and 5pm. Areas of frost before 8am. Otherwise, mostly cloudy, with a high near 49. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 32. Light west wind.

    Low: 32 °F

    Frost

  • Saturday

    Saturday: A slight chance of showers after 2pm. Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 49. Calm wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 49 °F

    Frost then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening.

    Low: 31 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 53. West wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 53 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers. Partly cloudy, with a low around 41. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 41 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 2pm. Partly sunny, with a high near 62. Southwest wind 13 to 16 mph. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

Detailed Forecast

Tonight
Areas of frost after 2am. Otherwise, partly cloudy, with a low around 33. West wind 5 to 7 mph becoming calm in the evening.
Friday
Showers likely, mainly between 1pm and 5pm. Areas of frost before 8am. Otherwise, mostly cloudy, with a high near 49. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 32. Light west wind.
Saturday
A slight chance of showers after 2pm. Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 49. Calm wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 20%.
Saturday Night
Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening.
Sunday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 53. West wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday Night
A chance of showers. Partly cloudy, with a low around 41. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday
Showers likely, mainly after 2pm. Partly sunny, with a high near 62. Southwest wind 13 to 16 mph. Chance of precipitation is 60%.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Wednesday
Showers. High near 60. Chance of precipitation is 80%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
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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:
7:57 pm EDT Apr 30, 2026
Forecast Valid:
9pm EDT Apr 30, 2026-6pm EDT May 7, 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