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

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

30°F

-1°C

Humidity 79%
Wind Speed W 12 mph
Barometer 30.00 in (1016.6 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 10 Dec 10:53 pm CST
Extended Forecast for

Mattoon IL

  • Tonight

    Tonight: Cloudy, with a low around 23. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 23 °F

    Cloudy

  • Thursday

    Thursday: A 40 percent chance of snow after 4pm.  Mostly cloudy, with a high near 30. Northwest wind 5 to 7 mph becoming south in the afternoon.

    High: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times.  Low around 26. South southeast wind 5 to 7 mph becoming northeast after midnight.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 26 °F

    Heavy Snow
    then Snow
    Likely

  • Friday

    Friday: Mostly cloudy, with a high near 32. North northeast wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.

    High: 32 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14. West northwest wind around 10 mph, with gusts as high as 16 mph.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow likely, mainly after noon.  Cloudy, with a high near 17. Northwest wind 7 to 9 mph.  Chance of precipitation is 60%.

    High: 17 °F

    Chance Snow
    then Snow
    Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -5. North northwest wind 7 to 10 mph, with gusts as high as 16 mph.

    Low: -5 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny and cold, with a high near 6.

    High: 6 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -4.

    Low: -4 °F

    Mostly Clear

Detailed Forecast

Tonight
Cloudy, with a low around 23. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
A 40 percent chance of snow after 4pm. Mostly cloudy, with a high near 30. Northwest wind 5 to 7 mph becoming south in the afternoon.
Thursday Night
Snow. The snow could be heavy at times. Low around 26. South southeast wind 5 to 7 mph becoming northeast after midnight. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday
Mostly cloudy, with a high near 32. North northeast wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.
Friday Night
Mostly cloudy, with a low around 14. West northwest wind around 10 mph, with gusts as high as 16 mph.
Saturday
Snow likely, mainly after noon. Cloudy, with a high near 17. Northwest wind 7 to 9 mph. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around -5. North northwest wind 7 to 10 mph, with gusts as high as 16 mph.
Sunday
Sunny and cold, with a high near 6.
Sunday Night
Mostly clear, with a low around -4.
Monday
Sunny, with a high near 26.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly cloudy, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon IL
 39.49°N 88.39°W (Elev. 732 ft)
10:36 pm CST Dec 10, 2025
11pm CST Dec 10, 2025-6pm CST Dec 17, 2025
 
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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