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.

Fair

83°F

28°C

Humidity 65%
Wind Speed E 3 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 14 Jul 6:53 pm CDT
Extended Forecast for

Arthur IL

  • Tonight

    Tonight: Increasing clouds, with a low around 69. Calm wind.

    Low: 69 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 86. South southeast wind 3 to 7 mph.

    High: 86 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Southwest wind 5 to 8 mph.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 89. West wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Mostly Sunny
    then T-storms
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. West wind 5 to 7 mph becoming north northeast after midnight.

    Low: 67 °F

    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 69. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 86. South southeast wind 3 to 7 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 89. Southwest wind 5 to 8 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southwest wind around 6 mph. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 89. West wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67. West wind 5 to 7 mph becoming north northeast after midnight.
Friday
Partly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 69.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 89.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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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:
6:41 pm CDT Jul 14, 2025
Forecast Valid:
7pm CDT Jul 14, 2025-6pm CDT Jul 21, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation