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

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Light Snow Fog/Mist

26°F

-3°C

Humidity 84%
Wind Speed S 7 mph
Barometer 30.23 in (1024.6 mb)
Dewpoint 22°F (-6°C)
Visibility 2.00 mi
Wind Chill18°F (-8°C)
Last update 1 Dec 1:53 pm CST
Extended Forecast for

5 Miles ESE Janesville IL

Winter Weather Advisory until December 2, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 2, 06:00am

    NOW until 6:00am Tue

    Winter Weather Advisory

  • This Afternoon

    High: 29 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 1am. Low around 18. Calm wind becoming west northwest 5 to 7 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 24. Northwest wind 5 to 8 mph becoming calm in the afternoon.

    High: 24 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15. Calm wind becoming south around 6 mph after midnight.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 35. South wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 35 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 9. West southwest wind 6 to 10 mph becoming north northwest after midnight. Winds could gust as high as 18 mph.

    Low: 9 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 17. North northwest wind 5 to 10 mph becoming light north in the afternoon. Winds could gust as high as 17 mph.

    High: 17 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow, mainly after 4pm. High near 29. East wind 3 to 5 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 1am. Low around 18. Calm wind becoming west northwest 5 to 7 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Mostly cloudy, with a high near 24. Northwest wind 5 to 8 mph becoming calm in the afternoon.
Tuesday Night
Partly cloudy, with a low around 15. Calm wind becoming south around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 35. South wind 7 to 10 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly cloudy, with a low around 9. West southwest wind 6 to 10 mph becoming north northwest after midnight. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 17. North northwest wind 5 to 10 mph becoming light north in the afternoon. Winds could gust as high as 17 mph.
Thursday Night
Partly cloudy, with a low around 3.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly cloudy, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Janesville IL
 39.35°N 88.17°W (Elev. 551 ft)
Last Update:
1:16 pm CST Dec 1, 2025
Forecast Valid:
2pm CST Dec 1, 2025-6pm CST Dec 7, 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