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.

Fair

35°F

2°C

Humidity 75%
Wind Speed NW 3 mph
Barometer 30.31 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 12 Mar 4:35 am CDT
Extended Forecast for

4 Miles SSE Tunnel Hill IL

  • Today

    Today: Sunny, with a high near 53. North wind 6 to 8 mph becoming west in the afternoon.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. Breezy, with a south southwest wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 29 mph.

    Low: 41 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 63. Southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. Light and variable wind becoming east northeast around 6 mph after midnight.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. East northeast wind 6 to 9 mph becoming south southeast in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Southeast wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Breezy, with a south wind 13 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.

    High: 71 °F

    Mostly Cloudy
    then Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow showers likely, mainly before 1am. Some thunder is also possible. Mostly cloudy, with a low around 27. Breezy, with a southwest wind around 20 mph becoming west northwest after midnight. Winds could gust as high as 32 mph.

    Low: 27 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 37. West northwest wind 15 to 17 mph, with gusts as high as 29 mph.

    High: 37 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. North wind 6 to 8 mph becoming west in the afternoon.
Tonight
Mostly clear, with a low around 41. Breezy, with a south southwest wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 29 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 39. Light and variable wind becoming east northeast around 6 mph after midnight.
Saturday
Mostly sunny, with a high near 66. East northeast wind 6 to 9 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 54. Southeast wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday
Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Breezy, with a south wind 13 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.
Sunday Night
Rain and snow showers likely, mainly before 1am. Some thunder is also possible. Mostly cloudy, with a low around 27. Breezy, with a southwest wind around 20 mph becoming west northwest after midnight. Winds could gust as high as 32 mph.
Monday
Partly sunny, with a high near 37. West northwest wind 15 to 17 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 18. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 42. Light and variable wind becoming west around 6 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 32. South wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 57. South southwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Tunnel Hill IL
 37.51°N 88.85°W
Last Update:
3:41 am CDT Mar 12, 2026
Forecast Valid:
4am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation