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.

Fair

54°F

12°C

Humidity 75%
Wind Speed S 7 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 11 Nov 8:53 am CST
Extended Forecast for

Janesville IL

  • Veterans Day

    Veterans Day: Increasing clouds, with a high near 68. South wind 6 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 68 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. North northwest wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 10am. Mostly cloudy, with a high near 48. North northwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 48 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. North northwest wind 9 to 16 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 43. North northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. North northwest wind 3 to 6 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46. North northwest wind around 5 mph becoming calm in the afternoon.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 24.

    Low: 24 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

Veterans Day
Increasing clouds, with a high near 68. South wind 6 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Tonight
Mostly cloudy, with a low around 41. North northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Thursday
A 20 percent chance of showers after 10am. Mostly cloudy, with a high near 48. North northwest wind 11 to 17 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 32. North northwest wind 9 to 16 mph, with gusts as high as 24 mph.
Friday
Sunny, with a high near 43. North northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 25. North northwest wind 3 to 6 mph.
Saturday
Sunny, with a high near 46. North northwest wind around 5 mph becoming calm in the afternoon.
Saturday Night
Clear, with a low around 24.
Sunday
Sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Janesville IL
 39.37°N 88.25°W (Elev. 669 ft)
Last Update:
9:26 am CST Nov 11, 2026
Forecast Valid:
9am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation