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

52°F

11°C

Humidity 53%
Wind Speed NW 16 G 22 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 18 Apr 5:53 pm CDT
Extended Forecast for

Martinsville IL

Frost Advisory April 19, 01:00am until April 19, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 36. Northwest wind 6 to 13 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61. West southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 4am. Otherwise, mostly clear, with a low around 34. North wind 5 to 14 mph, with gusts as high as 24 mph.

    Low: 34 °F

    Partly Cloudy
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 8am. Otherwise, sunny, with a high near 59. Light and variable wind becoming northeast around 5 mph.

    High: 59 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 18 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 29 mph.

    High: 75 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 36. Northwest wind 6 to 13 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 61. West southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 34. North wind 5 to 14 mph, with gusts as high as 24 mph.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 59. Light and variable wind becoming northeast around 5 mph.
Monday Night
Mostly clear, with a low around 45. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 75. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 57. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A chance of showers. Partly cloudy, with a low around 62.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74.
Friday Night
Showers likely. Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 67.
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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:
6:36 pm CDT Apr 18, 2026
Forecast Valid:
6pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
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