Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

81°F

27°C

Humidity 74%
Wind Speed S 12 mph
Barometer 29.87 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 21 Jun 10:45 am CDT
Extended Forecast for

3 Miles SW Tunnel Hill IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Partly sunny, with a high near 86. South wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am.  Low around 69. South southwest wind 9 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%.

    Low: 69 °F

    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly before noon.  Mostly cloudy, with a high near 79. North northwest wind around 9 mph.

    High: 79 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 81. Northeast wind 3 to 5 mph.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am.  Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am.  Mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 86. South wind 7 to 14 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Low around 69. South southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Monday
A 40 percent chance of showers and thunderstorms, mainly before noon. Mostly cloudy, with a high near 79. North northwest wind around 9 mph.
Monday Night
Partly cloudy, with a low around 62. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 81. Northeast wind 3 to 5 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 63. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Light and variable wind.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 66. Calm wind.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Calm wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light south wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Southwest wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Tunnel Hill IL
 37.53°N 88.93°W
11:01 am CDT Jun 21, 2026
11am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database