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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 and Breezy

30°F

-1°C

Humidity 64%
Wind Speed W 21 G 33 mph
Barometer 30.01 in (1018.7 mb)
Dewpoint 19°F (-7°C)
Visibility 8.00 mi
Wind Chill17°F (-8°C)
Last update 28 Nov 1:56 pm EST
Extended Forecast for

3 Miles ESE Youngsville PA

Lake Effect Snow Warning November 28, 02:20pm until November 29, 01:00am
Click here for hazard details and duration
Lake Effect Snow Warning
  •  
    Lake Effect Snow Warning November 28, 02:20pm until November 29, 01:00am

    NOW until 1:00am Sat

    Lake Effect Snow Warning

  • This Afternoon

    High: 34 °F

    Heavy Snow

  • Tonight

    Tonight: Snow showers likely, mainly before 8pm. The snow could be heavy at times. Mostly cloudy, with a low around 21. West wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 21 °F

    Heavy Snow

  • Saturday

    Saturday: A slight chance of snow showers before 10am, then a slight chance of snow showers after 4pm. Mostly cloudy, with a high near 34. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Snow Showers

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. Low around 25. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: Rain, possibly mixed with snow. High near 40. South wind 10 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow, mainly before 1am. Low around 20. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Snow

  • Monday

    Monday: Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Snow likely after 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.

    Low: 20 °F

    Mostly Cloudy
    then Snow
    Likely

Detailed Forecast

This Afternoon
Frequent snow showers. The snow could be heavy at times. High near 34. West wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow showers likely, mainly before 8pm. The snow could be heavy at times. Mostly cloudy, with a low around 21. West wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Saturday
A slight chance of snow showers before 10am, then a slight chance of snow showers after 4pm. Mostly cloudy, with a high near 34. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Saturday Night
Snow, mainly after 1am. Low around 25. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday
Rain, possibly mixed with snow. High near 40. South wind 10 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Sunday Night
Snow, mainly before 1am. Low around 20. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 31.
Monday Night
Snow likely after 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.
Tuesday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.
Tuesday Night
A chance of snow before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 33.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 40%.
Thursday
A chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Youngsville PA
 41.85°N 79.27°W (Elev. 1339 ft)
Last Update:
1:05 pm EST Nov 28, 2025
Forecast Valid:
2pm EST Nov 28, 2025-6pm EST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation