National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

27°F

-3°C

Humidity 75%
Wind Speed NW 9 mph
Barometer 30.47 in (1032.7 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 11 Jan 2:53 pm CST
Extended Forecast for

Arthur IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 34. West wind 9 to 14 mph, with gusts as high as 18 mph.

    High: 34 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 24. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 44. West southwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. Southwest wind 13 to 17 mph, with gusts as high as 26 mph.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. West wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow after noon. Mostly cloudy, with a high near 40. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 34. West wind 9 to 14 mph, with gusts as high as 18 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 24. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 44. West southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 32. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 53. Southwest wind 13 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 34. West wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
A chance of rain and snow after noon. Mostly cloudy, with a high near 40. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 14.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Mostly cloudy, with a high near 37.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Mostly cloudy, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arthur IL
 39.71°N 88.46°W (Elev. 663 ft)
Last Update:
3:17 pm CST Jan 11, 2026
Forecast Valid:
3pm CST Jan 11, 2026-6pm CST Jan 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation