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

72°F

22°C

Humidity 31%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Mar 12:47 pm CDT
Extended Forecast for

4 Miles NW Tunnel Hill IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 71. South wind around 6 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. South wind around 6 mph.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. West southwest wind 7 to 10 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54. Southwest wind around 6 mph becoming calm after midnight.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 60. South wind 3 to 6 mph.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. South southwest wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. West southwest wind around 14 mph becoming north after midnight. Winds could gust as high as 24 mph.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 59. North wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 71. South wind around 6 mph.
Tonight
Mostly clear, with a low around 54. South wind around 6 mph.
Friday
Sunny, with a high near 79. West southwest wind 7 to 10 mph.
Friday Night
Partly cloudy, with a low around 54. Southwest wind around 6 mph becoming calm after midnight.
Saturday
Sunny, with a high near 80. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 60. South wind 3 to 6 mph.
Sunday
Sunny, with a high near 85. South southwest wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 45. West southwest wind around 14 mph becoming north after midnight. Winds could gust as high as 24 mph.
Monday
Mostly sunny, with a high near 59. North wind 8 to 11 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 41. East northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 62. Southeast wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 46. East southeast wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 71. South wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Tunnel Hill IL
 37.6°N 88.93°W
Last Update:
1:16 pm CDT Mar 19, 2026
Forecast Valid:
1pm CDT Mar 19, 2026-6pm CDT Mar 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation