Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
84°F
29°C
| Humidity | 74% |
| Wind Speed | S 12 mph |
| Barometer | 30.01 in (1015.4 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 92°F (33°C) |
| Last update | 4 Jul 10:53 am CDT |
Extended Forecast for
3 Miles E Sullivan IL
Heat Advisory July 4, 11:07am until July 4, 07:00pm
NOW until 7:00pm Sat

Heat Advisory
Independence Day

High: 89 °F
Showers
LikelyTonight

Low: 68 °F
Chance
T-stormsSunday

High: 84 °F
Chance
T-stormsSunday Night

Low: 67 °F
Mostly Cloudy
Monday
High: 84 °F
Partly Sunny
then Chance
ShowersMonday Night

Low: 66 °F
Partly Cloudy
Tuesday

High: 85 °F
Mostly Sunny
Tuesday Night

Low: 66 °F
Partly Cloudy
Detailed Forecast
Independence Day
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 89. Southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms, mainly between 11pm and 3am. Mostly cloudy, with a low around 68. Light and variable wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 8 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 67. North northeast wind 3 to 6 mph.
Monday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 84. North northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 66. North northeast wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 85. North northeast wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles E Sullivan IL
39.61°N 88.55°W (Elev. 650 ft)
39.61°N 88.55°W (Elev. 650 ft)
10:31 am CDT Jul 4, 2026
11am CDT Jul 4, 2026-6pm CDT Jul 10, 2026



