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.

Mostly Cloudy

82°F

28°C

Humidity 55%
Wind Speed S 12 mph
Barometer 30.11 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 5 Oct 1:47 pm CDT
Extended Forecast for

4 Miles NNW Tunnel Hill IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. South wind around 9 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 65. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 65 °F

    Clear

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Increasing clouds, with a high near 79. South wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 7pm, then showers likely between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 67. Light southeast wind. Chance of precipitation is 80%.

    Low: 67 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 57. North wind 6 to 8 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 71. Northeast wind around 10 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 49. Northeast wind around 6 mph.

    Low: 49 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Northeast wind around 7 mph.

    High: 70 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 83. South wind around 9 mph.
Tonight
Clear, with a low around 65. Calm wind becoming south southeast around 5 mph after midnight.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Increasing clouds, with a high near 79. South wind 5 to 7 mph. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 7pm, then showers likely between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 67. Light southeast wind. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 70%.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 57. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 71. Northeast wind around 10 mph.
Wednesday Night
Clear, with a low around 49. Northeast wind around 6 mph.
Thursday
Sunny, with a high near 70. Northeast wind around 7 mph.
Thursday Night
Mostly clear, with a low around 47. Calm wind.
Friday
Sunny, with a high near 74. Light east northeast wind.
Friday Night
Mostly clear, with a low around 51. Calm wind.
Saturday
Sunny, with a high near 74. Calm wind becoming east around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Tunnel Hill IL
 37.6°N 88.9°W
Last Update:
1:16 pm CDT Oct 5, 2025
Forecast Valid:
1pm CDT Oct 5, 2025-6pm CDT Oct 11, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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