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.

Fog/Mist

52°F

11°C

Humidity 94%
Wind Speed NW 8 mph
Barometer 30.10 in
Dewpoint 50°F (10°C)
Visibility 5.00 mi
Wind Chill49°F (9°C)
Last update 6 Nov 6:45 am CST
Extended Forecast for

3 Miles SW Carterville IL

Freeze Watch November 7, 11:00pm until November 8, 08:00am
Freeze Warning November 6, 11:00pm until November 7, 08:00am
Click here for hazard details and duration
Freeze Watch
Freeze Warning

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 56. Light and variable wind becoming north 5 to 10 mph in the morning.

    High: 56 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Patchy frost after 11pm. Otherwise, clear, with a low around 31. North northwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Patchy Frost

  • Saturday

    Saturday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 54. Light north northwest wind.

    High: 54 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 63. Calm wind becoming west southwest around 5 mph.

    High: 63 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming southwest around 5 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Light southwest wind.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. Calm wind becoming west around 5 mph.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 56. Light and variable wind becoming north 5 to 10 mph in the morning.
Tonight
Patchy frost after 11pm. Otherwise, clear, with a low around 31. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 54. Light north northwest wind.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 63. Calm wind becoming west southwest around 5 mph.
Sunday Night
Clear, with a low around 37. Calm wind.
Monday
Sunny, with a high near 67. Calm wind becoming southwest around 5 mph.
Monday Night
Mostly clear, with a low around 41. Light southwest wind.
Tuesday
Sunny, with a high near 68. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Veterans Day
A slight chance of showers. Sunny, with a high near 66. Calm wind becoming west around 5 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 43. Calm wind.
Thursday
A slight chance of showers. Mostly sunny, with a high near 62. Calm wind becoming north northwest 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Carterville IL
 37.74°N 89.12°W
Last Update:
6:36 am CST Nov 6, 2026
Forecast Valid:
6am CST Nov 6, 2026-6pm CST Nov 12, 2026
 
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