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

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

81°F

27°C

Humidity 34%
Wind Speed S 6 mph
Barometer 30.03 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Sep 12:45 pm CDT
Extended Forecast for

Crainville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. South wind around 5 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 60. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 60 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 90. South wind 6 to 9 mph.

    High: 90 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70. South southeast wind 5 to 8 mph.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 90. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 90 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 69. South wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 75. Southwest wind 5 to 9 mph becoming north in the afternoon. Chance of precipitation is 90%.

    High: 75 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 59. North northeast wind 7 to 9 mph.

    Low: 59 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Mostly cloudy, with a high near 70. Northeast wind around 9 mph.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 85. South wind around 5 mph.
Tonight
Increasing clouds, with a low around 60. Calm wind becoming south southeast around 5 mph after midnight.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 90. South wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 70. South southeast wind 5 to 8 mph.
Thursday
Partly sunny, with a high near 90. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Thursday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 69. South wind around 5 mph.
Friday
Showers and possibly a thunderstorm. High near 75. Southwest wind 5 to 9 mph becoming north in the afternoon. Chance of precipitation is 90%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 59. North northeast wind 7 to 9 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 70. Northeast wind around 9 mph.
Saturday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 57. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 72. Light north wind increasing to 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 51. North wind 3 to 5 mph.
Monday
Sunny, with a high near 71. Northeast wind 5 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crainville IL
 37.76°N 89.06°W
Last Update:
11:56 am CDT Sep 29, 2026
Forecast Valid:
1pm CDT Sep 29, 2026-6pm CDT Oct 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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