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Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
73°F
23°C
| Humidity | 94% |
| Wind Speed | SE 5 mph |
| Barometer | 30.04 in (1016.7 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 18 Aug 5:53 am CDT |
Extended Forecast for
Janesville IL
Heat Advisory August 18, 06:42am until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Today
High: 90 °F
Mostly Sunny
Tonight
Low: 72 °F
Mostly Clear
then Slight
Chance
T-stormsTuesday
High: 89 °F
Chance
T-stormsTuesday Night
Low: 71 °F
Chance
T-stormsWednesday
High: 85 °F
Mostly Sunny
Wednesday Night
Low: 64 °F
Mostly Clear
Thursday
High: 83 °F
Sunny
Thursday Night
Low: 63 °F
Mostly Clear
Detailed Forecast
Today
Mostly sunny, with a high near 90. Heat index values as high as 101. Light and variable wind becoming southeast around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 72. Calm wind.
Tuesday
A slight chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 89. Light and variable wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Light and variable wind.
Wednesday
Mostly sunny, with a high near 85. North northeast wind 5 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 64. North northeast wind 6 to 8 mph.
Thursday
Sunny, with a high near 83. North northeast wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 80.
Additional Forecasts and Information
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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)
5:10 am CDT Aug 18, 2025
6am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
Additional Resources
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