Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
93°F
34°C
| Humidity | 53% |
| Wind Speed | S 5 mph |
| Barometer | 30.06 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 103°F (39°C) |
| Last update | 2 Sep 11:47 am CDT |
Extended Forecast for
Zeigler IL
Extreme Heat Warning September 2, 01:11pm until September 5, 08:00pm
NOW until 8:00pm Sat

Extreme Heat Warning
This Afternoon

High: 97 °F
Hot
Tonight

Low: 76 °F
Mostly Clear
Thursday

High: 99 °F
Hot
Thursday Night

Low: 76 °F
Clear
Friday

High: 99 °F
Hot
Friday Night

Low: 76 °F
Mostly Clear
Saturday

High: 98 °F
Slight Chance
T-stormsSaturday Night

Low: 72 °F
Slight Chance
T-storms
Detailed Forecast
This Afternoon
Sunny and hot, with a steady temperature around 97. Heat index values as high as 106. South southwest wind around 8 mph.
Tonight
Mostly 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 8 mph in the morning.
Thursday Night
Clear, with a low around 76. Light and variable 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. Mostly sunny and hot, with a high near 98. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Calm wind.
Sunday
Sunny, with a high near 95. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 70. Northeast wind around 6 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 94. Calm wind becoming east 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 69. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 95. Calm wind becoming south 5 to 8 mph in the morning.
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ABOUT THIS FORECAST
Point Forecast:
Zeigler IL
37.89°N 89.05°W
37.89°N 89.05°W
10:46 am CDT Sep 2, 2026
1pm CDT Sep 2, 2026-6pm CDT Sep 8, 2026



