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

61°F

16°C

Humidity 93%
Wind Speed W 3 mph
Barometer 29.93 in (1013.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 19 Jun 1:53 am CDT
Extended Forecast for

4 Miles SW Arthur IL

  • Overnight

    Overnight: Mostly clear, with a low around 57. Light west wind.

    Low: 57 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 78. West northwest wind 5 to 9 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. West northwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81. West wind 3 to 7 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 62. Calm wind becoming east southeast around 5 mph after midnight.

    Low: 62 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 78. Southeast wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 78 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 62. South wind 14 to 16 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 62 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 57. Light west wind.
Juneteenth
Sunny, with a high near 78. West northwest wind 5 to 9 mph.
Friday Night
Partly cloudy, with a low around 60. West northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 81. West wind 3 to 7 mph.
Saturday Night
Increasing clouds, with a low around 62. Calm wind becoming east southeast around 5 mph after midnight.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 78. Southeast wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 62. South wind 14 to 16 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Monday
Partly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Arthur IL
 39.67°N 88.52°W (Elev. 663 ft)
Last Update:
1:26 am CDT Jun 19, 2026
Forecast Valid:
2am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
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