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.

Mostly Cloudy

68°F

20°C

Humidity 60%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 30 Sep 7:45 am CDT
Extended Forecast for

New Burnside IL

  • Today

    Today: Mostly sunny, with a high near 89. South southwest wind 5 to 9 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 3 to 7 mph.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 89. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 89 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers likely after 1am. Increasing clouds, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers, with thunderstorms also possible after 1pm. High near 73. Calm wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 90%.

    High: 73 °F

    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 57. North northeast wind around 9 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers. Partly sunny, with a high near 69. Northeast wind around 9 mph.

    High: 69 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 72. North wind 3 to 8 mph.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 89. South southwest wind 5 to 9 mph.
Tonight
Partly cloudy, with a low around 69. South wind 3 to 7 mph.
Thursday
Partly sunny, with a high near 89. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Showers likely after 1am. Increasing clouds, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 60%.
Friday
Showers, with thunderstorms also possible after 1pm. High near 73. Calm wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 90%.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 57. North northeast wind around 9 mph.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 69. Northeast wind around 9 mph.
Saturday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 72. North wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 50. North wind 5 to 7 mph.
Monday
Sunny, with a high near 68. North northeast wind 7 to 10 mph.
Monday Night
Clear, with a low around 45. East northeast wind 3 to 5 mph.
Tuesday
Sunny, with a high near 70. East wind around 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New Burnside IL
 37.57°N 88.76°W
Last Update:
5:35 am CDT Sep 30, 2026
Forecast Valid:
7am CDT Sep 30, 2026-6pm CDT Oct 6, 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