Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
39°F
4°C
| Humidity | 93% |
| Wind Speed | SW 6 mph |
| Barometer | 30.26 in |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 3 Nov 6:45 am CST |
Extended Forecast for
Simpson IL
Today
High: 63 °F
Sunny
Tonight
Low: 38 °F
Patchy Fog
Tuesday
High: 67 °F
Patchy Fog
then SunnyTuesday Night
Low: 49 °F
Mostly Clear
Wednesday
High: 71 °F
Sunny
Wednesday Night
Low: 44 °F
Clear
Thursday
High: 69 °F
Sunny
Thursday Night
Low: 54 °F
Mostly Clear
then Slight
Chance
ShowersFriday
High: 72 °F
Chance
Showers
Detailed Forecast
Today
Sunny, with a high near 63. West southwest wind 5 to 8 mph becoming calm in the afternoon.
Tonight
Patchy fog after 7pm. Otherwise, mostly clear, with a low around 38. Calm wind.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 67. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 49. South southwest wind around 7 mph.
Wednesday
Sunny, with a high near 71. Southwest wind 5 to 9 mph becoming light west in the afternoon.
Wednesday Night
Clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 69. Calm wind becoming south southeast 5 to 8 mph in the morning.
Thursday Night
A slight chance of showers after midnight. Partly cloudy, with a low around 54. South wind 6 to 9 mph, with gusts as high as 20 mph.
Friday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 72. South southwest wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Mostly clear, with a low around 44. West wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 62. Calm wind becoming west southwest 5 to 7 mph in the morning.
Saturday Night
A chance of showers. Partly cloudy, with a low around 41. Light and variable wind becoming northwest around 6 mph after midnight.
Sunday
Mostly sunny, with a high near 54. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Simpson IL
37.46°N 88.77°W
37.46°N 88.77°W
3:22 am CST Nov 3, 2025
7am CST Nov 3, 2025-6pm CST Nov 9, 2025
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