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

66°F

19°C

Humidity 46%
Wind Speed SW 3 mph
Barometer 30.12 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 9 Nov 4:45 pm CST
Extended Forecast for

2 Miles WSW Carterville IL

  • Tonight

    Tonight: Clear, with a low around 44. Light southwest wind.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Light west wind.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: A 30 percent chance of showers after noon. Mostly sunny, with a high near 70. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. North northwest wind 6 to 10 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48. North northwest wind 6 to 10 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. Light north northwest wind.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 44. Light southwest wind.
Tuesday
Sunny, with a high near 69. Light west wind.
Tuesday Night
Mostly clear, with a low around 47. Calm wind.
Veterans Day
A 30 percent chance of showers after noon. Mostly sunny, with a high near 70. Calm wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 45. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 53. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 32. North northwest wind 6 to 10 mph.
Friday
Mostly sunny, with a high near 48. North northwest wind 6 to 10 mph.
Friday Night
Mostly clear, with a low around 29. Light north northwest wind.
Saturday
Sunny, with a high near 52. Calm wind.
Saturday Night
Mostly clear, with a low around 32. Calm wind.
Sunday
A slight chance of showers. Mostly sunny, with a high near 56. Calm wind becoming south 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 39. Calm wind.
Monday
Partly sunny, with a high near 60. Calm wind becoming south around 5 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Carterville IL
 37.74°N 89.12°W
Last Update:
4:00 pm CST Nov 9, 2026
Forecast Valid:
5pm CST Nov 9, 2026-6pm CST Nov 16, 2026
 
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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