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

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

41°F

5°C

Humidity 86%
Wind Speed NA
Barometer 29.81 in (1009.6 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 8 Nov 5:53 am CST
Extended Forecast for

3 Miles S Janesville IL

  • Today

    Today: A 30 percent chance of rain, mainly after 5pm. Partly sunny, with a high near 60. Light and variable wind becoming west northwest around 6 mph in the morning.

    High: 60 °F

    Partly Sunny
    then Chance
    Rain

  • Tonight

    Tonight: Rain before 5am, then a chance of rain and snow. Low around 34. Breezy, with an east northeast wind 6 to 11 mph becoming north northwest 15 to 20 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain then
    Chance
    Rain/Snow and
    Breezy

  • Sunday

    Sunday: A 20 percent chance of snow showers. Mostly cloudy, with a high near 39. Breezy, with a northwest wind 17 to 23 mph, with gusts as high as 33 mph.

    High: 39 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow showers after midnight. Partly cloudy, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Partly Cloudy
    then Chance
    Snow Showers

  • Monday

    Monday: Sunny, with a high near 38. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 23. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 23 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 48. Breezy, with a south southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 48 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of rain, mainly after 5pm. Partly sunny, with a high near 60. Light and variable wind becoming west northwest around 6 mph in the morning.
Tonight
Rain before 5am, then a chance of rain and snow. Low around 34. Breezy, with an east northeast wind 6 to 11 mph becoming north northwest 15 to 20 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
A 20 percent chance of snow showers. Mostly cloudy, with a high near 39. Breezy, with a northwest wind 17 to 23 mph, with gusts as high as 33 mph.
Sunday Night
A 30 percent chance of snow showers after midnight. Partly cloudy, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 38. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 23. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Veterans Day
Partly sunny, with a high near 48. Breezy, with a south southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 63.
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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:
6:06 am CST Nov 8, 2025
Forecast Valid:
6am CST Nov 8, 2025-6pm CST Nov 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation