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

73°F

23°C

Humidity 57%
Wind Speed S 8 mph
Barometer 29.87 in (1011.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 May 6:53 pm CDT
Extended Forecast for

5 Miles SE Charleston IL

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 64. South southeast wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 78. West southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 62. South wind 5 to 7 mph.

    Low: 62 °F

    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 85. South wind 9 to 16 mph, with gusts as high as 28 mph.

    High: 85 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. South wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy, with a south wind 14 to 20 mph, with gusts as high as 33 mph.

    High: 87 °F

    Breezy. Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 80. Chance of precipitation is 80%.

    High: 80 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 64. South southeast wind 9 to 11 mph, with gusts as high as 23 mph.
Saturday
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 78. West southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 62. South wind 5 to 7 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 85. South wind 9 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 66. South wind 11 to 13 mph, with gusts as high as 23 mph.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy, with a south wind 14 to 20 mph, with gusts as high as 33 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 14 to 16 mph, with gusts as high as 26 mph.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 80. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Charleston IL
 39.43°N 88.11°W (Elev. 702 ft)
Last Update:
2:51 pm CDT May 15, 2026
Forecast Valid:
7pm CDT May 15, 2026-6pm CDT May 22, 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