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.

Fair

10°F

-12°C

Humidity 61%
Wind Speed Calm
Barometer 30.39 in (1030.4 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Last update 20 Jan 12:53 am CST
Extended Forecast for

Martinsville IL

  • Overnight

    Overnight: Mostly cloudy, then gradually becoming clear, with a low around 6. Wind chill values between -1 and 4. Southwest wind around 6 mph.

    Low: 6 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 29. Wind chill values between -4 and 6. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 29 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. South wind 11 to 17 mph, with gusts as high as 28 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 42. West wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 42 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. West southwest wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 33. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 33 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. Northwest wind 5 to 10 mph, with gusts as high as 16 mph.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 14.

    High: 14 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, then gradually becoming clear, with a low around 6. Wind chill values between -1 and 4. Southwest wind around 6 mph.
Tuesday
Increasing clouds, with a high near 29. Wind chill values between -4 and 6. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 23. South wind 11 to 17 mph, with gusts as high as 28 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 42. West wind 10 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 22. West southwest wind 9 to 13 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 33. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 9. Northwest wind 5 to 10 mph, with gusts as high as 16 mph.
Friday
Mostly cloudy, with a high near 14.
Friday Night
Mostly cloudy, with a low around 2.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 14.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Martinsville IL
 39.34°N 87.88°W (Elev. 600 ft)
Last Update:
1:41 am CST Jan 20, 2026
Forecast Valid:
1am CST Jan 20, 2026-6pm CST Jan 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation