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.

A Few Clouds

78°F

26°C

Humidity 74%
Wind Speed N 7 mph
Barometer 29.99 in (1015.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Aug 1:53 pm CDT
Extended Forecast for

3 Miles SE Windsor IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 82. East northeast wind around 5 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 62. Light east wind.

    Low: 62 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 85. Calm wind becoming south southeast around 5 mph.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Southeast wind 3 to 5 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. South wind 3 to 5 mph.

    Low: 66 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. South southwest wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 82. East northeast wind around 5 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 62. Light east wind.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 85. Calm wind becoming south southeast around 5 mph.
Tuesday Night
Mostly clear, with a low around 64. Southeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning.
Wednesday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. South wind 3 to 5 mph.
Thursday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. South southwest wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Windsor IL
 39.41°N 88.57°W (Elev. 656 ft)
Last Update:
1:28 pm CDT Aug 3, 2026
Forecast Valid:
2pm CDT Aug 3, 2026-6pm CDT Aug 9, 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