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

86°F

30°C

Humidity 65%
Wind Speed S 8 mph
Barometer 30.14 in (1019.9 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 7 Aug 2:53 pm CDT
Extended Forecast for

6 Miles E Janesville IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind around 5 mph.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 69. Calm wind becoming south southwest around 5 mph.

    Low: 69 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 89. South wind 3 to 8 mph.

    High: 89 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. South southeast wind around 6 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90. South wind 6 to 10 mph, with gusts as high as 15 mph.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South wind around 6 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. South southwest wind 3 to 7 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 69. Calm wind becoming south southwest around 5 mph.
Friday
Mostly sunny, with a high near 89. South wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 71. South southeast wind around 6 mph.
Saturday
Sunny, with a high near 90. South wind 6 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Mostly clear, with a low around 71. South wind around 6 mph.
Sunday
Sunny, with a high near 89. South southwest wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 71.
Monday
Mostly sunny, with a high near 88.
Monday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 71.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Janesville IL
 39.37°N 88.14°W (Elev. 607 ft)
Last Update:
2:25 pm CDT Aug 7, 2025
Forecast Valid:
3pm CDT Aug 7, 2025-6pm CDT Aug 13, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation