Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

73°F

23°C

Humidity 90%
Wind Speed SW 3 mph
Barometer 29.90 in (1011.3 mb)
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 19 Jul 11:51 pm CDT
Extended Forecast for

Zion IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 67. West wind 5 to 10 mph becoming north.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers between 8am and 1pm.  Mostly cloudy, with a high near 72. Northeast wind around 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 65. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 76. East wind around 10 mph, with gusts as high as 15 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. East northeast wind 5 to 10 mph becoming southeast after midnight.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 67. West wind 5 to 10 mph becoming north.
Sunday
A slight chance of showers between 8am and 1pm. Mostly cloudy, with a high near 72. Northeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 65. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 76. East wind around 10 mph, with gusts as high as 15 mph.
Monday Night
Partly cloudy, with a low around 68. East northeast wind 5 to 10 mph becoming southeast after midnight.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Mostly sunny, with a high near 92.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Friday Night
A chance of showers. Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.84°W
11:57 pm CDT Jul 19, 2025
12am CDT Jul 20, 2025-6pm CDT Jul 26, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database