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.

Mostly Cloudy

75°F

24°C

Humidity 84%
Wind Speed Calm
Barometer 29.84 in (1010.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 12 Aug 8:52 am CDT
Extended Forecast for

Forest Lake IL

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 82. North northeast wind 5 to 10 mph becoming west southwest in the afternoon.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. North wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. East wind around 5 mph. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 81.

    High: 81 °F

    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 82. North northeast wind 5 to 10 mph becoming west southwest in the afternoon.
Tonight
Mostly cloudy, with a low around 67. North wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. East wind around 5 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 70.
Sunday
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 81.
Sunday Night
Mostly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Forest Lake IL
 42.2°N 88.06°W
Last Update:
8:46 am CDT Aug 12, 2026
Forecast Valid:
9am CDT Aug 12, 2026-6pm CDT Aug 18, 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