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.

Fog

59°F

15°C

Humidity 100%
Wind Speed N 3 mph
Barometer 30.20 in
Dewpoint 59°F (15°C)
Visibility 0.15 mi
Last update 25 Sep 2:55 am CDT
Extended Forecast for

4 Miles SSE Tunnel Hill IL

  • Overnight

    Overnight: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76. Northeast wind 3 to 6 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. Light northeast wind.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 75. Light northeast wind.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 77. Light northeast wind.

    High: 77 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 58. Calm wind.
Friday
Mostly sunny, with a high near 76. Northeast wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 57. Light northeast wind.
Saturday
Partly sunny, with a high near 75. Light northeast wind.
Saturday Night
Mostly cloudy, with a low around 57. Calm wind.
Sunday
Partly sunny, with a high near 77. Light northeast wind.
Sunday Night
Mostly clear, with a low around 53. Calm wind.
Monday
Sunny, with a high near 80. Calm wind.
Monday Night
Mostly clear, with a low around 56. Calm wind.
Tuesday
Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 65. Calm wind becoming south 5 to 7 mph in the evening.
Wednesday
A chance of showers. Mostly cloudy, with a high near 81. South southwest wind 7 to 9 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. South southeast wind 3 to 5 mph.
Thursday
A chance of showers. Partly sunny, with a high near 82. South wind 5 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Tunnel Hill IL
 37.51°N 88.85°W
Last Update:
1:51 am CDT Sep 25, 2026
Forecast Valid:
3am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation