Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

78°F

26°C

Humidity 93%
Wind Speed S 5 mph
Barometer 30.01 in (1015.3 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 26 Jul 5:53 am CDT
Extended Forecast for

2 Miles NNW Charleston IL

Heat Advisory July 26, 06:00am until July 26, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 26, 06:00am until July 26, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • Today

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm.  Mostly cloudy, with a low around 74. South wind around 7 mph.

    Low: 74 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 89. Heat index values as high as 103. West southwest wind around 6 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. Calm wind becoming west around 6 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Light and variable wind.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 102. South southwest wind 5 to 10 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 74. South wind around 7 mph.
Sunday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 89. Heat index values as high as 103. West southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 74. Calm wind.
Monday
Mostly sunny, with a high near 93. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75. Calm wind.
Tuesday
Sunny, with a high near 93. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
5:25 am CDT Jul 26, 2025
6am CDT Jul 26, 2025-6pm CDT Aug 1, 2025
 
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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