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Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
75°F
24°C
| Humidity | 94% |
| Wind Speed | S 3 mph |
| Barometer | 30.21 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Last update | 24 Jun 1:55 am CDT |
Extended Forecast for
Simpson IL
Heat Advisory June 24, 02:13am until June 27, 07:00pm
NOW until 7:00pm Fri
Heat Advisory
Overnight
Low: 73 °F
Mostly Clear
Tuesday
High: 93 °F
Patchy Fog
then Slight
Chance
T-stormsTuesday Night
Low: 73 °F
Partly Cloudy
Wednesday
High: 93 °F
Mostly Sunny
then Slight
Chance
T-stormsWednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 94 °F
Slight Chance
T-stormsThursday Night
Low: 75 °F
Partly Cloudy
Friday
High: 94 °F
Slight Chance
T-storms
Detailed Forecast
Overnight
Mostly clear, with a low around 73. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 73. Light south wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Light southwest wind.
Wednesday Night
Mostly clear, with a low around 75. Calm wind.
Thursday
A slight chance of showers, with thunderstorms also possible after 10am. Sunny, with a high near 94. Light west southwest wind. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 75. Calm wind.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Light south southwest wind.
Saturday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Light southwest wind.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming west southwest around 6 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Simpson IL
37.46°N 88.77°W
37.46°N 88.77°W
2:02 am CDT Jun 24, 2025
2am CDT Jun 24, 2025-6pm CDT Jun 30, 2025
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