Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

68°F

20°C

Humidity 78%
Wind Speed Calm
Barometer 30.02 in (1015.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Jun 8:53 pm CDT
Extended Forecast for

4 Miles SE Janesville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Light west southwest wind.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82. West wind 5 to 7 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 63. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 63 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers between 7am and 1pm, then showers and thunderstorms after 1pm.  High near 79. Southeast wind 5 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 79 °F

    Chance
    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm after 1am.  Low around 64. South southwest wind 11 to 14 mph becoming west northwest after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 64 °F

    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 75. North northwest wind around 11 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. North northeast wind 5 to 10 mph, with gusts as high as 17 mph.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 62. Light west southwest wind.
Saturday
Mostly sunny, with a high near 82. West wind 5 to 7 mph.
Saturday Night
Increasing clouds, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers between 7am and 1pm, then showers and thunderstorms after 1pm. High near 79. Southeast wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm after 1am. Low around 64. South southwest wind 11 to 14 mph becoming west northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday
Mostly cloudy, with a high near 75. North northwest wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 57. North northeast wind 5 to 10 mph, with gusts as high as 17 mph.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A chance of showers. Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Janesville IL
 39.33°N 88.2°W (Elev. 614 ft)
7:51 pm CDT Jun 19, 2026
9pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database