Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

84°F

29°C

Humidity 74%
Wind Speed S 12 mph
Barometer 30.01 in (1015.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 4 Jul 10:53 am CDT
Extended Forecast for

3 Miles E Sullivan IL

Heat Advisory July 4, 11:07am until July 4, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 4, 11:07am until July 4, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • Independence Day

    High: 89 °F

    Showers
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly between 11pm and 3am.  Mostly cloudy, with a low around 68. Light and variable wind.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after noon.  Partly sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 8 mph in the morning.

    High: 84 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 67. North northeast wind 3 to 6 mph.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of showers after 1pm.  Partly sunny, with a high near 84. North northeast wind around 7 mph.

    High: 84 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. North northeast wind 3 to 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. North northeast wind 5 to 7 mph.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Independence Day
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 89. Southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms, mainly between 11pm and 3am. Mostly cloudy, with a low around 68. Light and variable wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 8 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 67. North northeast wind 3 to 6 mph.
Monday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 84. North northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 66. North northeast wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 85. North northeast wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Sullivan IL
 39.61°N 88.55°W (Elev. 650 ft)
10:31 am CDT Jul 4, 2026
11am CDT Jul 4, 2026-6pm CDT Jul 10, 2026
 
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Additional Resources

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