Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Tuesday

In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding Tuesday. Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota Tuesday afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. Extreme heat returns to the southwest U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.02 in (1015.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 6 Jul 10:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 67. North northeast wind around 6 mph.

    Low: 67 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 84. Northeast wind 5 to 8 mph.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Southwest wind 6 to 8 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm.  Partly cloudy, with a low around 70. South southwest wind around 6 mph.  Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    Low: 70 °F

    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm.  High near 85. Chance of precipitation is 80%.

    High: 85 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 67. North northeast wind around 6 mph.
Tuesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 84. Northeast wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 65. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 86. Calm wind.
Wednesday Night
Mostly clear, with a low around 68. Calm wind becoming south southwest around 5 mph after midnight.
Thursday
Sunny, with a high near 90. Southwest wind 6 to 8 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 70. South southwest wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Friday
Showers and possibly a thunderstorm. High near 85. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
6:51 pm CDT Jul 6, 2026
11pm CDT Jul 6, 2026-6pm CDT Jul 13, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database