Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
84°F
29°C
| Humidity | 66% |
| Wind Speed | SW 5 mph |
| Barometer | 30.08 in |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 2 Sep 8:47 am CDT |
Extended Forecast for
Crainville IL
Extreme Heat Warning September 2, 08:51am until September 5, 08:00pm
NOW until 8:00pm Sat

Extreme Heat Warning
Today

High: 99 °F
Hot
Tonight

Low: 76 °F
Clear
Thursday

High: 99 °F
Hot
Thursday Night

Low: 76 °F
Mostly Clear
Friday

High: 99 °F
Hot
Friday Night

Low: 76 °F
Mostly Clear
Saturday
High: 98 °F
Sunny then
Slight Chance
T-stormsSaturday Night

Low: 72 °F
Slight Chance
Showers
Detailed Forecast
Today
Sunny and hot, with a high near 99. Heat index values as high as 106. Calm wind becoming south southwest 5 to 7 mph in the morning.
Tonight
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 106. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 76. Light south wind.
Friday
Sunny and hot, with a high near 99. Light and variable wind.
Friday Night
Mostly clear, with a low around 76. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 72. Calm wind.
Sunday
Sunny, with a high near 95. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 70. East northeast wind around 6 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 94. Calm wind becoming east northeast around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 70. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 94. Calm wind becoming south 5 to 7 mph in the morning.
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ABOUT THIS FORECAST
Point Forecast:
Crainville IL
37.76°N 89.06°W
37.76°N 89.06°W
7:51 am CDT Sep 2, 2026
8am CDT Sep 2, 2026-6pm CDT Sep 8, 2026



