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

64°F

18°C

Humidity 90%
Wind Speed NA
Barometer 30.00 in (1015.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 May 10:53 pm CDT
Extended Forecast for

2 Miles SSW Ashmore IL

  • Tonight

    Tonight: Partly cloudy, with a low around 65. South wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 81. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Chance
    T-storms then
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 57. West southwest wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. North northeast wind around 11 mph, with gusts as high as 21 mph.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46. North northeast wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. East northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52. East wind around 10 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. South wind 13 to 15 mph, with gusts as high as 26 mph.
Tuesday
Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 81. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 57. West southwest wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Partly sunny, with a high near 67. North northeast wind around 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly cloudy, with a low around 46. North northeast wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 68. East northeast wind around 11 mph, with gusts as high as 20 mph.
Thursday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52. East wind around 10 mph, with gusts as high as 18 mph.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 59.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
A chance of showers. Partly sunny, with a high near 79.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 63.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Ashmore IL
 39.5°N 88.04°W (Elev. 699 ft)
Last Update:
7:51 pm CDT May 18, 2026
Forecast Valid:
11pm CDT May 18, 2026-6pm CDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation