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

67°F

19°C

Humidity 93%
Wind Speed S 3 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 22 Sep 8:53 pm CDT
Extended Forecast for

Windsor IL

Dense Fog Advisory September 23, 03:00am until September 23, 09:00am
Click here for hazard details and duration
Dense Fog Advisory

  • Tonight

    Tonight: Widespread fog, mainly after 5am. Otherwise, increasing clouds, with a low around 63. Light south wind.

    Low: 63 °F

    Partly Cloudy
    then Fog

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Widespread fog, mainly before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.

    High: 82 °F

    Fog then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 58. North wind around 6 mph.

    Low: 58 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers. Mostly sunny, with a high near 75. North northwest wind around 7 mph.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

Detailed Forecast

Tonight
Widespread fog, mainly after 5am. Otherwise, increasing clouds, with a low around 63. Light south wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Widespread fog, mainly before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 58. North wind around 6 mph.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 75. North northwest wind around 7 mph.
Thursday Night
Mostly clear, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 79.
Friday Night
Clear, with a low around 53.
Saturday
Sunny, with a high near 82.
Saturday Night
Clear, with a low around 54.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Windsor IL
 39.43°N 88.59°W (Elev. 715 ft)
Last Update:
9:26 pm CDT Sep 22, 2025
Forecast Valid:
9pm CDT Sep 22, 2025-6pm CDT Sep 29, 2025
 
Forecast Discussion
 
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Additional Resources

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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