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.

Overcast

68°F

20°C

Humidity 88%
Wind Speed S 9 mph
Barometer 29.99 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 5 Mar 4:47 pm CST
Extended Forecast for

New Burnside IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 70. Southwest wind around 6 mph.

    High: 70 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 3am, then a slight chance of showers. Mostly cloudy, with a low around 60. South wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 77. South southwest wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 63. South wind 9 to 14 mph, with gusts as high as 26 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 72. South southwest wind 8 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 72 °F

    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 44. Northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers after noon. Mostly sunny, with a high near 75. South southwest wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 70. Southwest wind around 6 mph.
Tonight
A chance of showers and thunderstorms before 3am, then a slight chance of showers. Mostly cloudy, with a low around 60. South wind 3 to 6 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 77. South southwest wind 6 to 14 mph, with gusts as high as 25 mph.
Friday Night
A 50 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 63. South wind 9 to 14 mph, with gusts as high as 26 mph.
Saturday
Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 72. South southwest wind 8 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 44. Northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 64. Light and variable wind.
Sunday Night
Mostly clear, with a low around 49. Calm wind becoming south southwest around 5 mph after midnight.
Monday
A slight chance of showers after noon. Mostly sunny, with a high near 75. South southwest wind 5 to 10 mph, with gusts as high as 21 mph.
Monday Night
A chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 61. South southwest wind around 9 mph, with gusts as high as 18 mph.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 76. South southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. South southwest wind 11 to 14 mph, with gusts as high as 26 mph.
Wednesday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 70. South southwest wind around 14 mph becoming north northwest in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 40. North wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 55. North wind 7 to 9 mph becoming east in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Burnside IL
 37.57°N 88.76°W
Last Update:
1:46 pm CST Mar 5, 2026
Forecast Valid:
5pm CST Mar 5, 2026-6pm CDT Mar 12, 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