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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

61°F

16°C

Humidity 42%
Wind Speed SW 12 mph
Barometer 29.96 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 13 Mar 1:45 pm CDT
Extended Forecast for

Carterville IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 64. West wind around 11 mph, with gusts as high as 20 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Northwest wind around 6 mph becoming light and variable in the evening.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67. East wind 6 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 18 mph.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 55. South southeast wind 8 to 14 mph, with gusts as high as 24 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 71. Breezy, with a south wind 18 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 60%.

    High: 71 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Low around 26. Breezy, with a south southwest wind 21 to 24 mph becoming west northwest after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%.

    Low: 26 °F

    Showers and
    Breezy then
    Rain/Snow and
    Blustery

  • Monday

    Monday: A 20 percent chance of snow showers before 1pm. Mostly cloudy, with a high near 33. Breezy, with a west northwest wind around 21 mph, with gusts as high as 32 mph.

    High: 33 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 15. Blustery, with a west northwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 25 mph.

    Low: 15 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 38. West northwest wind around 8 mph.

    High: 38 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 64. West wind around 11 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 38. Northwest wind around 6 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 67. East wind 6 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Increasing clouds, with a low around 55. South southeast wind 8 to 14 mph, with gusts as high as 24 mph.
Sunday
Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 71. Breezy, with a south wind 18 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Low around 26. Breezy, with a south southwest wind 21 to 24 mph becoming west northwest after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%.
Monday
A 20 percent chance of snow showers before 1pm. Mostly cloudy, with a high near 33. Breezy, with a west northwest wind around 21 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 15. Blustery, with a west northwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 25 mph.
Tuesday
Sunny, with a high near 38. West northwest wind around 8 mph.
Tuesday Night
A slight chance of rain and snow showers after 1am. Mostly cloudy, with a low around 29. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 58. South southwest wind around 14 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 41. South southwest wind 5 to 8 mph.
Thursday
Sunny, with a high near 69. West wind around 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Carterville IL
 37.76°N 89.09°W
Last Update:
1:26 pm CDT Mar 13, 2026
Forecast Valid:
2pm CDT Mar 13, 2026-6pm CDT Mar 19, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation