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.

A Few Clouds

47°F

8°C

Humidity 42%
Wind Speed SW 5 mph
Barometer 30.14 in (1021.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 12 Mar 4:53 pm CDT
Extended Forecast for

3 Miles S Janesville IL

Wind Advisory March 12, 10:00pm until March 13, 04:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 43 mph.

    Low: 41 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 55. Breezy, with a southwest wind 20 to 25 mph becoming west northwest in the afternoon. Winds could gust as high as 45 mph.

    High: 55 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32. West northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 56. East southeast wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 56 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47. East southeast wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain and possibly a thunderstorm after 1pm. High near 66. Breezy, with a south wind 16 to 21 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Breezy.
    Cloudy then
    Rain

  • Sunday Night

    Sunday Night: Rain before 1am, then rain and snow likely. Some thunder is also possible. Low around 22. Breezy, with a south southwest wind 23 to 28 mph becoming west after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 22 °F

    Breezy. Rain
    then
    Rain/Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 25. Blustery.

    High: 25 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 41. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 43 mph.
Friday
Partly sunny, with a high near 55. Breezy, with a southwest wind 20 to 25 mph becoming west northwest in the afternoon. Winds could gust as high as 45 mph.
Friday Night
Mostly cloudy, with a low around 32. West northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.
Saturday
Mostly cloudy, with a high near 56. East southeast wind 5 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 47. East southeast wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday
Rain and possibly a thunderstorm after 1pm. High near 66. Breezy, with a south wind 16 to 21 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain before 1am, then rain and snow likely. Some thunder is also possible. Low around 22. Breezy, with a south southwest wind 23 to 28 mph becoming west after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 25. Blustery.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 19.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Janesville IL
 39.33°N 88.26°W (Elev. 591 ft)
Last Update:
4:36 pm CDT Mar 12, 2026
Forecast Valid:
5pm CDT Mar 12, 2026-6pm CDT Mar 19, 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