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Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
A Few Clouds
91°F
33°C
| Humidity | 52% |
| Wind Speed | SW 7 mph |
| Barometer | 30.07 in |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 98°F (37°C) |
| Last update | 18 Aug 12:45 pm CDT |
Extended Forecast for
2 Miles N Herrin IL
Heat Advisory August 18, 12:59pm until August 19, 07:00pm
NOW until 7:00pm Tue
Heat Advisory
This Afternoon
High: 99 °F
Hot
Tonight
Low: 74 °F
Mostly Clear
Tuesday
High: 98 °F
Sunny then
Chance
T-stormsTuesday Night
Low: 74 °F
Chance
T-stormsWednesday
High: 92 °F
Chance
T-stormsWednesday Night
Low: 68 °F
Partly Cloudy
Thursday
High: 90 °F
Mostly Sunny
Thursday Night
Low: 67 °F
Mostly Clear
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 105. South wind around 5 mph becoming calm.
Tonight
Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming west northwest around 5 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 92. Calm wind becoming north northeast 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 68. North northeast wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 90. North northeast wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 67. North northeast wind 5 to 8 mph becoming calm in the evening.
Friday
Sunny, with a high near 92. Calm wind becoming north northeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 64. North wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 86. Light north wind becoming north northwest 5 to 9 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles N Herrin IL
37.83°N 89.03°W
37.83°N 89.03°W
11:31 am CDT Aug 18, 2025
12pm CDT Aug 18, 2025-6pm CDT Aug 24, 2025
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