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Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Light Snow Fog/Mist

-3°F

-19°C

Humidity 82%
Wind Speed W 9 mph
Barometer 30.50 in (1038.4 mb)
Dewpoint -7°F (-22°C)
Visibility 1.75 mi
Wind Chill-19°F (-28°C)
Last update 24 Jan 4:56 am EST
Extended Forecast for

5 Miles NNW Grand Valley PA

Cold Weather Advisory January 24, 05:23am until January 24, 10:00am
Winter Storm Warning January 24, 10:00pm until January 26, 01:00pm
Click here for hazard details and duration
...
Winter Storm Warning
  •  
    Cold Weather Advisory January 24, 05:23am until January 24, 10:00am

    NOW until 10:00am Sat

    Cold Weather Advisory

  • Today

    High: 9 °F

    Cold

  • Tonight

    Tonight: A chance of snow, mainly after 3am. Mostly cloudy, with a low around 4. Wind chill values as low as -5. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 4 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 17. Wind chill values as low as -5. Southeast wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 17 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 10. East wind around 6 mph becoming light and variable. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 10 °F

    Heavy Snow

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 15. West wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 15 °F

    Chance Snow

  • Monday Night

    Monday Night: A slight chance of snow showers before 1am. Mostly cloudy, with a low around -2. Chance of precipitation is 20%.

    Low: -2 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: A chance of snow showers before 1pm. Mostly cloudy, with a high near 12. Chance of precipitation is 30%.

    High: 12 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny and cold, with a high near 9. Wind chill values as low as -5. Calm wind.
Tonight
A chance of snow, mainly after 3am. Mostly cloudy, with a low around 4. Wind chill values as low as -5. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
Snow. The snow could be heavy at times. High near 17. Wind chill values as low as -5. Southeast wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 10. East wind around 6 mph becoming light and variable. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Monday
A chance of snow. Mostly cloudy, with a high near 15. West wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around -2. Chance of precipitation is 20%.
Tuesday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 12. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 3.
Wednesday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 12. Chance of precipitation is 30%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 0. Chance of precipitation is 30%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 12. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Mostly cloudy, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Grand Valley PA
 41.79°N 79.58°W (Elev. 1696 ft)
Last Update:
3:36 am EST Jan 24, 2026
Forecast Valid:
5am EST Jan 24, 2026-6pm EST Jan 30, 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