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.

Overcast

79°F

26°C

Humidity 74%
Wind Speed SE 6 mph
Barometer 29.98 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 16 May 12:45 pm CDT
Extended Forecast for

2 Miles SSE Tunnel Hill IL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a steady temperature around 82. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 8pm. Partly cloudy, with a low around 65. South southeast wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. South wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 88. South wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind 5 to 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 64 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. North northwest wind around 9 mph.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a steady temperature around 82. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 8pm. Partly cloudy, with a low around 65. South southeast wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 87. South wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 68. South wind 10 to 13 mph, with gusts as high as 23 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 88. South wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind 11 to 13 mph, with gusts as high as 23 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind 5 to 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. North northwest wind around 9 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. North northeast wind 6 to 8 mph.
Thursday
A slight chance of showers. Partly sunny, with a high near 74. Northeast wind around 8 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 56. Northeast wind 3 to 7 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 78. Northeast wind around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Tunnel Hill IL
 37.53°N 88.85°W
Last Update:
11:36 am CDT May 16, 2026
Forecast Valid:
1pm CDT May 16, 2026-6pm CDT May 22, 2026
 
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