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.

Partly Cloudy

55°F

13°C

Humidity 59%
Wind Speed SE 6 mph
Barometer 29.99 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 15 May 6:15 am CDT
Extended Forecast for

3 Miles SSE Tunnel Hill IL

  • Today

    Today: Mostly sunny, with a high near 81. South southeast wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. South southwest wind around 11 mph, with gusts as high as 23 mph.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 88. South wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 14 mph, with gusts as high as 26 mph.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 81. South southeast wind 6 to 13 mph, with gusts as high as 23 mph.
Tonight
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. South southwest wind around 11 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 65. South wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 88. South wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 69. South wind around 11 mph, with gusts as high as 22 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 26 mph.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind 10 to 13 mph, with gusts as high as 23 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 14 mph, with gusts as high as 26 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. North wind around 8 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North northeast wind 3 to 7 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Northeast 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
 37.51°N 88.85°W
Last Update:
3:32 am CDT May 15, 2026
Forecast Valid:
6am CDT May 15, 2026-6pm CDT May 21, 2026
 
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