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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

60°F

16°C

Humidity 52%
Wind Speed S 14 mph
Barometer 29.72 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 15 Mar 3:15 am CDT
Extended Forecast for

Tunnel Hill IL

Wind Advisory March 15, 10:00am until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 17 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 60%.

    High: 70 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 11pm. Low around 25. Breezy, with a west northwest wind 21 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.

    Low: 25 °F

    Showers and
    Breezy then
    Mostly Cloudy
    and Blustery

  • Monday

    Monday: Mostly cloudy, with a high near 34. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 31 mph.

    High: 34 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. West northwest wind 8 to 15 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 38. West northwest wind around 6 mph.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 21 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. South wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. South southwest wind around 7 mph.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 22 mph.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 17 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 60%.
Sunday Night
Showers and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 11pm. Low around 25. Breezy, with a west northwest wind 21 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
Monday
Mostly cloudy, with a high near 34. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 31 mph.
Monday Night
Mostly clear, with a low around 17. West northwest wind 8 to 15 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 38. West northwest wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 30. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 21 mph.
Wednesday
Mostly cloudy, with a high near 58. South wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 43. South southwest wind around 7 mph.
Thursday
Sunny, with a high near 69. South southwest wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 46. Light and variable wind.
Friday
Mostly sunny, with a high near 73. Southwest wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 51. Southwest wind around 7 mph becoming northwest after midnight.
Saturday
Partly sunny, with a high near 69. North northwest wind around 9 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tunnel Hill IL
 37.55°N 88.87°W
Last Update:
1:31 am CDT Mar 15, 2026
Forecast Valid:
3am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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