News Headlines
Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fog/Mist
68°F
20°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.04 in (1016.8 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 3.00 mi |
| Last update | 14 Jul 5:53 am CDT |
Extended Forecast for
Janesville IL
Dense Fog Advisory until July 14, 10:00am
NOW until 10:00am Mon
Dense Fog Advisory
Today
High: 85 °F
Areas Fog
then Mostly
SunnyTonight
Low: 70 °F
Partly Cloudy
Tuesday
High: 85 °F
Slight Chance
T-storms then
T-storms
LikelyTuesday Night
Low: 71 °F
Chance
T-stormsWednesday
High: 88 °F
Partly Sunny
then Chance
T-stormsWednesday Night
Low: 73 °F
Chance
T-storms then
Chance
ShowersThursday
High: 89 °F
Sunny then
Showers
LikelyThursday Night
Low: 71 °F
Chance
T-storms
Detailed Forecast
Today
Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming northeast around 5 mph.
Tonight
Partly cloudy, with a low around 70. Light east southeast wind.
Tuesday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 85. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Light south southeast wind. Chance of precipitation is 30%.
Wednesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Southwest wind 3 to 7 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 73. South southwest wind around 6 mph. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Southwest wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 69.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Janesville IL
39.37°N 88.25°W (Elev. 669 ft)
39.37°N 88.25°W (Elev. 669 ft)
5:25 am CDT Jul 14, 2025
6am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
