Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

69°F

21°C

Humidity 78%
Wind Speed NW 5 mph
Barometer 29.91 in (1012.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 26 Aug 10:51 pm CDT
Extended Forecast for

Third Lake IL

  • Tonight

    Tonight: Mostly clear, with a low around 61. West northwest wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers after 3pm.  Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 80 °F

    Sunny then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. East wind around 5 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 80. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Southeast wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 1pm.  Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 61. West northwest wind around 5 mph.
Thursday
A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph becoming northeast in the afternoon.
Thursday Night
Mostly clear, with a low around 59. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 61. Southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 81.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Sunday
A chance of showers before 1pm. Partly sunny, with a high near 86.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 89.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A chance of showers. Partly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Third Lake IL
 42.37°N 88.02°W
7:41 pm CDT Aug 26, 2026
11pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
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