Hazardous Weather Conditions
Current conditions at
Mattoon / Charleston, Coles County Memorial Airport (KMTO)
Lat: 39.48°NLon: 88.28°WElev: 722ft.
Fair
77°F
25°C
| Humidity | 90% |
| Wind Speed | S 3 mph |
| Barometer | 30.05 in (1016.6 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 8.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 2 Jul 2:53 am CDT |
Extended Forecast for
Arthur IL
Extreme Heat Warning July 2, 03:29am until July 3, 07:00pm
NOW until 7:00pm Fri
Extreme Heat Warning
Overnight
Low: 75 °F
Patchy Fog
Thursday
High: 93 °F
Patchy Fog
then Mostly
SunnyThursday Night
Low: 75 °F
Mostly Clear
Friday
High: 92 °F
Sunny then
Chance
T-stormsFriday Night
Low: 73 °F
Chance
T-stormsIndependence Day
High: 91 °F
Mostly Sunny
then Chance
T-stormsSaturday Night
Low: 71 °F
Chance
T-stormsSunday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Detailed Forecast
Overnight
Patchy fog. Otherwise, mostly clear, with a low around 75. Southwest wind around 6 mph.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 93. Heat index values as high as 105. South southwest wind 6 to 9 mph, with gusts as high as 15 mph.
Thursday Night
Mostly clear, with a low around 75. South southwest wind around 6 mph.
Friday
A 30 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 105. South southwest wind 5 to 9 mph, with gusts as high as 15 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southwest wind around 6 mph.
Independence Day
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Southwest wind 5 to 7 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind 3 to 5 mph.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 88.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Arthur IL
39.71°N 88.46°W (Elev. 663 ft)
39.71°N 88.46°W (Elev. 663 ft)
3:06 am CDT Jul 2, 2026
3am CDT Jul 2, 2026-6pm CDT Jul 8, 2026
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