Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fog/Mist
20°F
-7°C
| Humidity | 85% |
| Wind Speed | NW 8 mph |
| Barometer | 30.07 in (1019.4 mb) |
| Dewpoint | 16°F (-9°C) |
| Visibility | 4.00 mi |
| Wind Chill | 10°F (-12°C) |
| Last update | 2 Dec 12:53 pm CST |
Extended Forecast for
Janesville IL
This Afternoon

High: 22 °F
Scattered
FlurriesTonight

Low: 16 °F
Areas Fog
Wednesday
High: 35 °F
Patchy Fog
then Mostly
CloudyWednesday Night

Low: 10 °F
Mostly Cloudy
Thursday

High: 18 °F
Sunny
Thursday Night

Low: 4 °F
Partly Cloudy
Friday

High: 30 °F
Mostly Sunny
Friday Night

Low: 17 °F
Mostly Cloudy
Saturday

High: 31 °F
Partly Sunny
Detailed Forecast
This Afternoon
Scattered flurries before 5pm. Cloudy, with a high near 22. West northwest wind 3 to 8 mph.
Tonight
Areas of fog after 9pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 16. South wind 3 to 8 mph.
Wednesday
Patchy fog before 9am. Otherwise, increasing clouds, with a high near 35. South wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 16 mph.
Wednesday Night
Mostly cloudy, with a low around 10. Wind chill values between -1 and 4. West wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 18. North wind 5 to 10 mph becoming light in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 4. Light and variable wind.
Friday
Mostly sunny, with a high near 30. South southwest wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Partly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Mostly cloudy, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Partly sunny, with a high near 28.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Janesville IL
39.37°N 88.25°W (Elev. 669 ft)
39.37°N 88.25°W (Elev. 669 ft)
1:31 pm CST Dec 2, 2025
1pm CST Dec 2, 2025-6pm CST Dec 8, 2025


