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

Heavy Snow in the Northern Plains and Upper Midwest; Severe Thunderstorms in the Southern U.S.

In the north-central U.S., a storm will bring heavy snow and gusty to high winds over parts of the northern Plains and Upper Midwest today before moving across the Great Lakes with heavy lake effect snow Wednesday into Thanksgiving Day. Isolated severe thunderstorms are likely across parts of the Southeast/Deep South, mainly from this morning into early evening. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Light Rain

43°F

6°C

Humidity 100%
Wind Speed S 12 mph
Barometer 29.89 in (1013.5 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 25 Nov 12:56 pm EST
Extended Forecast for

Sherman NY

Lakeshore Flood Watch November 26, 07:00pm until November 27, 10:00am
Wind Advisory November 26, 12:00pm until November 28, 01:00am
Lake Effect Snow Warning November 27, 01:00am until November 29, 01:00am
Click here for hazard details and duration
Lakeshore Flood Watch
Wind Advisory
Lake Effect Snow Warning

  • This Afternoon

    This Afternoon: Showers. High near 50. South wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Showers

  • Tonight

    Tonight: Showers. Low around 45. South wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers

  • Wednesday

    Wednesday: Rain showers before 4pm, then a chance of rain and snow showers. Temperature rising to near 52 by noon, then falling to around 36 during the remainder of the day. Breezy, with a southwest wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 52 °F⇓

    Showers then
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers before 7pm, then snow showers. Patchy blowing snow after 10pm. Low around 26. Windy, with a southwest wind 25 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 26 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Thanksgiving Day

    Thanksgiving Day: Snow. The snow could be heavy at times. Widespread blowing snow, mainly between 7am and 2pm. High near 33. Breezy, with a west wind 25 to 28 mph, with gusts as high as 47 mph. Chance of precipitation is 100%.

    High: 33 °F

    Heavy Snow
    and Blowing
    Snow

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Widespread blowing snow, mainly before 1am. Low around 25. Breezy, with a west wind 22 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 100%.

    Low: 25 °F

    Heavy Snow
    and Blowing
    Snow

  • Friday

    Friday: Snow. Patchy blowing snow. High near 30. Breezy, with a west wind 21 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 100%.

    High: 30 °F

    Snow and
    Patchy
    Blowing Snow

  • Friday Night

    Friday Night: Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 20. West wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    Low: 20 °F

    Snow Showers
    Likely

  • Saturday

    Saturday: A chance of snow showers after 1pm. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.

    High: 31 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

This Afternoon
Showers. High near 50. South wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers. Low around 45. South wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain showers before 4pm, then a chance of rain and snow showers. Temperature rising to near 52 by noon, then falling to around 36 during the remainder of the day. Breezy, with a southwest wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain and snow showers before 7pm, then snow showers. Patchy blowing snow after 10pm. Low around 26. Windy, with a southwest wind 25 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Thanksgiving Day
Snow. The snow could be heavy at times. Widespread blowing snow, mainly between 7am and 2pm. High near 33. Breezy, with a west wind 25 to 28 mph, with gusts as high as 47 mph. Chance of precipitation is 100%.
Thursday Night
Snow. The snow could be heavy at times. Widespread blowing snow, mainly before 1am. Low around 25. Breezy, with a west wind 22 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 100%.
Friday
Snow. Patchy blowing snow. High near 30. Breezy, with a west wind 21 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 100%.
Friday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 20. West wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Saturday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.
Saturday Night
Snow showers. Low around 24. Chance of precipitation is 80%.
Sunday
Rain and snow showers. High near 37. Chance of precipitation is 80%.
Sunday Night
Snow showers likely. Cloudy, with a low around 23. Chance of precipitation is 70%.
Monday
A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sherman NY
 42.16°N 79.61°W (Elev. 1585 ft)
Last Update:
12:36 pm EST Nov 25, 2025
Forecast Valid:
1pm EST Nov 25, 2025-6pm EST Dec 1, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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