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.

Mostly Cloudy

70°F

21°C

Humidity 43%
Wind Speed SE 5 mph
Barometer 30.10 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 23 May 4:45 pm CDT
Extended Forecast for

3 Miles SE Tunnel Hill IL

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 54. Light east wind.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 67. Calm wind becoming east 5 to 8 mph in the morning.

    High: 67 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, mainly after 1am. Mostly cloudy, with a low around 56. East northeast wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 56 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 65. East northeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Cloudy, with a low around 54. East northeast wind 6 to 8 mph.

    Low: 54 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 64. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 57. East northeast wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. North northeast wind around 7 mph becoming northwest in the afternoon.

    High: 71 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 57. North northwest wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 54. Light east wind.
Saturday
A 40 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 67. Calm wind becoming east 5 to 8 mph in the morning.
Saturday Night
Showers likely and possibly a thunderstorm, mainly after 1am. Mostly cloudy, with a low around 56. East northeast wind 5 to 7 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 65. East northeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers. Cloudy, with a low around 54. East northeast wind 6 to 8 mph.
Memorial Day
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 64. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 57. East northeast wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. North northeast wind around 7 mph becoming northwest in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 57. North northwest wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 76. North northwest wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 58. Light north wind.
Thursday
A chance of showers. Partly sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Light and variable wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77. Northwest wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Tunnel Hill IL
 37.53°N 88.85°W
Last Update:
2:17 pm CDT May 23, 2025
Forecast Valid:
5pm CDT May 23, 2025-6pm CDT May 30, 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