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

73°F

23°C

Humidity 65%
Wind Speed S 13 G 18 mph
Barometer 29.89 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 16 May 2:15 am CDT
Extended Forecast for

West City IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 68. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 86. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 66. South southeast wind 5 to 8 mph.

    Low: 66 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 89. South wind 8 to 16 mph, with gusts as high as 23 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South wind 14 to 18 mph, with gusts as high as 26 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind 13 to 16 mph, with gusts as high as 23 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. South southwest wind 14 to 18 mph, with gusts as high as 26 mph.

    High: 88 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Mostly cloudy, with a low around 64. South southwest wind 6 to 11 mph becoming west northwest after midnight. Winds could gust as high as 18 mph.

    Low: 64 °F

    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 68. South wind around 11 mph, with gusts as high as 22 mph.
Saturday
Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 86. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Saturday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 66. South southeast wind 5 to 8 mph.
Sunday
Sunny, with a high near 89. South wind 8 to 16 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 70. South wind 11 to 13 mph, with gusts as high as 21 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South wind 14 to 18 mph, with gusts as high as 26 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind 13 to 16 mph, with gusts as high as 23 mph.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. South southwest wind 14 to 18 mph, with gusts as high as 26 mph.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Mostly cloudy, with a low around 64. South southwest wind 6 to 11 mph becoming west northwest after midnight. Winds could gust as high as 18 mph.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. North northwest wind 8 to 10 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. Mostly sunny, with a high near 75. Northeast wind around 9 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 56. Northeast wind 3 to 8 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 78. Northeast wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West City IL
 37.98°N 88.93°W
Last Update:
1:21 am CDT May 16, 2026
Forecast Valid:
2am 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