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Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

90°F

32°C

Humidity 41%
Wind Speed SW 12 mph
Barometer 29.89 in (1011.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 13 Oct 2:53 pm CDT
Extended Forecast for

Charleston IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. West southwest wind around 9 mph, with gusts as high as 16 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 70. South southwest wind 5 to 7 mph becoming west after midnight.

    Low: 70 °F

    Clear then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 79. Light and variable wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 63. Northeast wind around 6 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. Some of the storms could produce heavy rainfall. High near 79. East wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am. Mostly cloudy, with a low around 49. West southwest wind 8 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 60. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph.

    High: 60 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 36.

    Low: 36 °F

    Partly Cloudy
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 61.

    High: 61 °F

    Areas Frost
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. West southwest wind around 9 mph, with gusts as high as 16 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 70. South southwest wind 5 to 7 mph becoming west after midnight.
Wednesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 79. Light and variable wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 63. Northeast wind around 6 mph.
Thursday
Showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. Some of the storms could produce heavy rainfall. High near 79. East wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am. Mostly cloudy, with a low around 49. West southwest wind 8 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 60. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph.
Friday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 36.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 61.
Saturday Night
Clear, with a low around 36.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.48°N 88.19°W (Elev. 650 ft)
Last Update:
1:26 pm CDT Oct 13, 2026
Forecast Valid:
3pm CDT Oct 13, 2026-6pm CDT Oct 19, 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