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.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed SE 5 mph
Barometer 29.96 in (1013.9 mb)
Dewpoint 70°F (21°C)
Visibility 3.00 mi
Last update 26 Jul 5:53 am CDT
Extended Forecast for

Martinsville IL

  • Today

    Today: Areas of dense fog before 9am. Otherwise, mostly cloudy, with a high near 88. Calm wind becoming west southwest 5 to 7 mph in the morning.

    High: 88 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 74. West southwest wind around 5 mph becoming light and variable after midnight.

    Low: 74 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 93. Heat index values as high as 107. South southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 93 °F

    Chance
    T-storms then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. North wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. North wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. North wind 7 to 11 mph, with gusts as high as 17 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Areas of dense fog before 9am. Otherwise, mostly cloudy, with a high near 88. Calm wind becoming west southwest 5 to 7 mph in the morning.
Tonight
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 74. West southwest wind around 5 mph becoming light and variable after midnight.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 93. Heat index values as high as 107. South southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 76. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 89. North wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 64. North wind 7 to 13 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 85. North wind 7 to 11 mph, with gusts as high as 17 mph.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Martinsville IL
 39.34°N 87.88°W (Elev. 600 ft)
Last Update:
4:46 am CDT Jul 26, 2026
Forecast Valid:
6am CDT Jul 26, 2026-6pm CDT Aug 1, 2026
 
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Additional Resources

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