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

65°F

18°C

Humidity 71%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 28 Aug 10:15 pm CDT
Extended Forecast for

3 Miles SSE Tunnel Hill IL

  • Tonight

    Tonight: Clear, with a low around 58. Calm wind.

    Low: 58 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Northeast wind 3 to 5 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Northeast wind 5 to 7 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. Northeast wind around 6 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Northeast wind around 7 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Northeast wind 3 to 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 83. Northeast wind around 6 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59. Light northeast wind.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 58. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58. Northeast wind 3 to 5 mph.
Saturday
Sunny, with a high near 82. Northeast wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 58. Northeast wind around 6 mph.
Sunday
Sunny, with a high near 83. Northeast wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 57. Northeast wind 3 to 6 mph.
Labor Day
Mostly sunny, with a high near 83. Northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 59. Light northeast wind.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Light east northeast wind.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59. Calm wind.
Wednesday
A slight chance of showers. Sunny, with a high near 81. Calm wind becoming west around 6 mph in the morning.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 56. Northwest wind 3 to 5 mph.
Thursday
A slight chance of showers. Mostly sunny, with a high near 72. Northwest wind 6 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Tunnel Hill IL
 37.53°N 88.85°W
Last Update:
9:17 pm CDT Aug 28, 2025
Forecast Valid:
10pm CDT Aug 28, 2025-6pm CDT Sep 4, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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