Fire Weather Concerns and Severe Weather

Dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the northern and central High Plains through this weekend, where fuels remain largely receptive. Severe thunderstorms and heavy rainfall are possible from the Plains into the Upper Midwest, as well as in the Ohio Valley and portions of the Mid-Atlantic through this weekend. Read More >

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fog/Mist

67°F

19°C

Humidity 97%
Wind Speed NW 8 mph
Barometer 29.99 in (1015.1 mb)
Dewpoint 66°F (19°C)
Visibility 6.00 mi
Last update 13 Sep 5:53 am CDT
Extended Forecast for

5 Miles SE Sullivan IL

  • Today

    Today: Mostly sunny, with a high near 85. Light north wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm.  Partly cloudy, with a low around 58. East northeast wind 7 to 9 mph, with gusts as high as 15 mph.

    Low: 58 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. East southeast wind 9 to 11 mph, with gusts as high as 17 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Southeast wind around 11 mph, with gusts as high as 18 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. South wind around 11 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers after 10pm.  Partly cloudy, with a low around 68. West northwest wind around 5 mph becoming east in the evening.  Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers before 1pm.  Partly sunny, with a high near 91. Northeast wind around 6 mph.

    High: 91 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers.  Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 85. Light north wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 15 mph.
Tonight
A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 58. East northeast wind 7 to 9 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 82. East southeast wind 9 to 11 mph, with gusts as high as 17 mph.
Monday Night
Mostly clear, with a low around 67. Southeast wind around 11 mph, with gusts as high as 18 mph.
Tuesday
Sunny and hot, with a high near 95. South wind around 11 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers after 10pm. Partly cloudy, with a low around 68. West northwest wind around 5 mph becoming east in the evening. Chance of precipitation is 50%.
Wednesday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 91. Northeast wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 67.
Friday
A chance of showers. Mostly sunny, with a high near 86.
Friday Night
A chance of showers. Partly cloudy, with a low around 61.
Saturday
A chance of showers. Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Sullivan IL
 39.56°N 88.53°W (Elev. 650 ft)
6:36 am CDT Sep 13, 2026
6am CDT Sep 13, 2026-6pm CDT Sep 19, 2026
 
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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