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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

84°F

29°C

Humidity 74%
Wind Speed SW 8 mph
Barometer 29.92 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 10 Jul 4:45 pm CDT
Extended Forecast for

2 Miles NW Marion IL

Flood Watch July 10, 06:13pm until July 12, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 10, 06:13pm until July 12, 01:00am

    NOW until 1:00am Sun

    Flood Watch

  • Tonight

    Low: 72 °F

    T-storms
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. High near 87. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 87 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 70%.

    Low: 69 °F

    T-storms
    Likely then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Partly sunny, with a high near 84. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 86. Northeast wind 5 to 9 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69. East northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. East wind 3 to 8 mph.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 4am. Mostly cloudy, with a low around 72. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. High near 87. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 70%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Partly sunny, with a high near 84. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 86. Northeast wind 5 to 9 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 69. East northeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 88. East wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 70. Light and variable wind.
Wednesday
Sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 72. Calm wind.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 72. Calm wind.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. Calm wind becoming west northwest 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Marion IL
 37.76°N 88.97°W
Last Update:
5:21 pm CDT Jul 10, 2026
Forecast Valid:
6pm CDT Jul 10, 2026-6pm CDT Jul 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation