National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

25°C

77°F

Humidity 90%
Wind Speed W 13 km/h
Barometer 1015.1 mb (29.99 in)
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 16 Aug 8:52 am CDT
Extended Forecast for

Mundelein IL

  • Today

    Today: A 20 percent chance of showers after 3pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 28. West northwest wind 10 to 20 km/h, with gusts as high as 30 km/h.

    High: 28 °C

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 19. Northwest wind 10 to 15 km/h, with gusts as high as 25 km/h.

    Low: 19 °C

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 27. North northeast wind 10 to 15 km/h.

    High: 27 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18. West wind 5 to 10 km/h becoming south southwest in the evening.

    Low: 18 °C

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 27. West southwest wind 10 to 15 km/h increasing to 15 to 20 km/h in the afternoon. Winds could gust as high as 30 km/h. Chance of precipitation is 40%.

    High: 27 °C

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.

    Low: 18 °C

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 24.

    High: 24 °C

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15.

    Low: 15 °C

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 25.

    High: 25 °C

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 3pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 28. West northwest wind 10 to 20 km/h, with gusts as high as 30 km/h.
Tonight
Partly cloudy, with a low around 19. Northwest wind 10 to 15 km/h, with gusts as high as 25 km/h.
Monday
Mostly sunny, with a high near 27. North northeast wind 10 to 15 km/h.
Monday Night
Mostly clear, with a low around 18. West wind 5 to 10 km/h becoming south southwest in the evening.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 27. West southwest wind 10 to 15 km/h increasing to 15 to 20 km/h in the afternoon. Winds could gust as high as 30 km/h. Chance of precipitation is 40%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 24.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 25.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mundelein IL
 42.26°N 88°W
Last Update:
8:56 am CDT Aug 16, 2026
Forecast Valid:
8am CDT Aug 16, 2026-6pm CDT Aug 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