Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
42°F
6°C
| Humidity | 62% |
| Wind Speed | NW 5 mph |
| Barometer | 30.16 in (1021.6 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 39°F (4°C) |
| Last update | 18 Apr 11:53 pm CDT |
Extended Forecast for
3 Miles WNW Mattoon IL
Frost Advisory April 19, 01:00am until April 19, 08:00am
Overnight

Low: 36 °F
Patchy Frost
Sunday

High: 60 °F
Areas Frost
then Mostly
CloudySunday Night

Low: 33 °F
Partly Cloudy
then Patchy
FrostMonday

High: 59 °F
Patchy Frost
then SunnyMonday Night

Low: 46 °F
Mostly Clear
Tuesday
High: 75 °F
Mostly Sunny
then Mostly
Sunny and
BreezyTuesday Night

Low: 57 °F
Partly Cloudy
Wednesday

High: 77 °F
Mostly Sunny
Wednesday Night

Low: 59 °F
Mostly Clear
Detailed Forecast
Overnight
Patchy frost after 5am. Otherwise, clear, with a low around 36. Southwest wind around 6 mph.
Sunday
Areas of frost before 8am. Otherwise, increasing clouds, with a high near 60. West wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 33. North wind 5 to 13 mph, with gusts as high as 21 mph.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 59. North northeast wind around 6 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 46. South wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 75. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 57. Southwest wind 10 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 80.
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 73.
Friday Night
Showers likely. Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 65.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Mattoon IL
39.49°N 88.42°W (Elev. 732 ft)
39.49°N 88.42°W (Elev. 732 ft)
12:35 am CDT Apr 19, 2026
12am CDT Apr 19, 2026-6pm CDT Apr 25, 2026



