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.

A Few Clouds

75°F

24°C

Humidity 57%
Wind Speed NW 6 mph
Barometer 30.20 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 23 Jun 10:47 am CDT
Extended Forecast for

3 Miles SSE Tunnel Hill IL

  • Today

    Today: Sunny, with a high near 81. North wind 3 to 5 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Light south wind.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 85. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 70. Light south wind. Chance of precipitation is 80%.

    Low: 70 °F

    T-storms
    Likely then
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Southwest wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South southwest wind 3 to 7 mph.

    Low: 71 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 81. North wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 61. Calm wind.
Wednesday
Mostly sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 66. Light south wind.
Thursday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 85. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 70. Light south wind. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Southwest wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South southwest wind 3 to 7 mph.
Saturday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 6 mph.
Sunday
Sunny, with a high near 90. South southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Clear, with a low around 75. South wind 6 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 92. South southwest wind 6 to 11 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Tunnel Hill IL
 37.53°N 88.85°W
Last Update:
6:21 am CDT Jun 23, 2026
Forecast Valid:
11am CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
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Additional Resources

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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