Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
55°F
13°C
| Humidity | 37% |
| Wind Speed | W 10 G 31 mph |
| Barometer | 30.19 in (1022.6 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 52°F (11°C) |
| Last update | 19 Apr 10:53 am CDT |
Extended Forecast for
Martinsville IL
Frost Advisory April 20, 01:00am until April 20, 08:00am
This Afternoon

High: 61 °F
Mostly Cloudy
and BreezyTonight

Low: 35 °F
Partly Cloudy
then Areas
FrostMonday

High: 59 °F
Areas Frost
then SunnyMonday Night

Low: 44 °F
Mostly Clear
Tuesday
High: 75 °F
Mostly Sunny
then Mostly
Sunny and
BreezyTuesday Night

Low: 57 °F
Partly Cloudy
Wednesday

High: 76 °F
Sunny
Wednesday Night

Low: 57 °F
Mostly Clear
Thursday

High: 80 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny early, then becoming mostly cloudy, with a high near 61. Breezy, with a west wind 17 to 20 mph, with gusts as high as 30 mph.
Tonight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. Northwest wind 8 to 13 mph becoming light north after midnight. Winds could gust as high as 22 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 59. Light and variable wind.
Monday Night
Mostly clear, with a low around 44. Light south wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 75. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 57. Southwest wind around 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 76. West southwest wind around 10 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 64.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77.
Friday Night
Showers likely. Mostly cloudy, with a low around 52.
Saturday
A chance of showers. Mostly sunny, with a high near 68.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Martinsville IL
39.34°N 87.88°W (Elev. 600 ft)
39.34°N 87.88°W (Elev. 600 ft)
12:06 pm CDT Apr 19, 2026
12pm CDT Apr 19, 2026-6pm CDT Apr 25, 2026



