National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

86°F

30°C

Humidity 46%
Wind Speed S 16 G 28 mph
Barometer 29.92 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 17 May 4:45 pm CDT
Extended Forecast for

Crainville IL

Lake Wind Advisory until May 17, 07:00pm
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory until May 17, 07:00pm

    NOW until 7:00pm Sun

    Lake Wind Advisory

  • This Afternoon

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. South wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 87. South wind 11 to 17 mph, with gusts as high as 26 mph.

    High: 87 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 10pm. Partly cloudy, with a low around 72. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 87. South southwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    High: 87 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 62. West southwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 73. North wind around 9 mph. Chance of precipitation is 30%.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 55. Northeast wind 6 to 9 mph.

    Low: 55 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 88. South wind around 16 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 71. South wind 10 to 13 mph, with gusts as high as 21 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 87. South wind 11 to 17 mph, with gusts as high as 26 mph.
Monday Night
Showers and thunderstorms likely, mainly before 10pm. Partly cloudy, with a low around 72. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 87. South southwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. West southwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 90%.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 73. North wind around 9 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 55. Northeast wind 6 to 9 mph.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Northeast wind around 7 mph.
Thursday Night
A chance of showers after 1am. Mostly cloudy, with a low around 58. East wind 3 to 7 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 77. East southeast wind around 6 mph becoming southwest in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crainville IL
 37.76°N 89.06°W
Last Update:
2:31 pm CDT May 17, 2026
Forecast Valid:
4pm CDT May 17, 2026-6pm CDT May 23, 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