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

80°F

27°C

Humidity 92%
Wind Speed S 5 mph
Barometer 29.90 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 26 Jul 10:35 pm CDT
Extended Forecast for

North City IL

Extreme Heat Warning until July 28, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until July 28, 07:00pm

    NOW until 7:00pm Tue

    Extreme Heat Warning

  • Tonight

    Low: 77 °F

    Chance
    T-storms

  • Monday

    Monday: Sunny and hot, with a high near 100. Heat index values as high as 113. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 100 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. Southwest wind 7 to 9 mph.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Heat index values as high as 106. Northwest wind 6 to 11 mph.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. North northeast wind 5 to 10 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. North wind 3 to 8 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 67. North northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 77. Calm wind.
Monday
Sunny and hot, with a high near 100. Heat index values as high as 113. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 79. Southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 95. Heat index values as high as 106. Northwest wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 70. North northeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 89. North wind 3 to 8 mph.
Wednesday Night
Clear, with a low around 67. North northeast wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Calm wind becoming east northeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. Calm wind becoming south around 6 mph in the morning.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 5 to 7 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Light east northeast wind becoming north northeast 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 68. North northeast wind 5 to 9 mph becoming light in the evening.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 87. Light north wind becoming north northeast 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
North City IL
 37.98°N 89.07°W
Last Update:
9:11 pm CDT Jul 26, 2026
Forecast Valid:
10pm CDT Jul 26, 2026-6pm CDT Aug 2, 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