National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Light Snow Fog/Mist

33°F

1°C

Humidity 100%
Wind Speed SW 16 mph
Barometer 29.23 in (991.7 mb)
Dewpoint 33°F (1°C)
Visibility 1.00 mi
Wind Chill23°F (-5°C)
Last update 10 Dec 12:56 pm EST
Extended Forecast for

4 Miles S Conewango Valley NY

Winter Weather Advisory December 10, 01:37pm until December 12, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 10, 01:37pm until December 12, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • This Afternoon

    High: 36 °F

    Rain/Snow

  • Tonight

    Tonight: Snow before midnight, then snow showers likely, mainly after 2am. Low around 18. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow then
    Snow Showers
    Likely

  • Thursday

    Thursday: Snow. High near 24. West wind 14 to 18 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 24 °F

    Snow

  • Thursday Night

    Thursday Night: Snow before 1am, then a chance of snow showers after 1am. Low around 17. West wind 7 to 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Snow

  • Friday

    Friday: A chance of snow showers before 1pm. Mostly cloudy, with a high near 28. West wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 28 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 14. South wind 3 to 8 mph. Chance of precipitation is 70%.

    Low: 14 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers
    Likely

  • Saturday

    Saturday: Snow showers. High near 26. West wind 9 to 16 mph. Chance of precipitation is 90%.

    High: 26 °F

    Snow Showers

  • Saturday Night

    Saturday Night: Snow showers. Low around 11. West wind 9 to 11 mph. Chance of precipitation is 80%.

    Low: 11 °F

    Snow Showers

Detailed Forecast

This Afternoon
Rain and snow. High near 36. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow before midnight, then snow showers likely, mainly after 2am. Low around 18. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow. High near 24. West wind 14 to 18 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow before 1am, then a chance of snow showers after 1am. Low around 17. West wind 7 to 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 28. West wind 5 to 7 mph. Chance of precipitation is 30%.
Friday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 14. South wind 3 to 8 mph. Chance of precipitation is 70%.
Saturday
Snow showers. High near 26. West wind 9 to 16 mph. Chance of precipitation is 90%.
Saturday Night
Snow showers. Low around 11. West wind 9 to 11 mph. Chance of precipitation is 80%.
Sunday
Snow showers. High near 20. Chance of precipitation is 80%.
Sunday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 60%.
Monday
A chance of snow showers. Mostly cloudy, with a high near 22. Chance of precipitation is 40%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 11. Chance of precipitation is 50%.
Tuesday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Conewango Valley NY
 42.22°N 79.01°W (Elev. 1601 ft)
Last Update:
12:36 pm EST Dec 10, 2025
Forecast Valid:
1pm EST Dec 10, 2025-6pm EST Dec 16, 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