Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

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. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

76°F

24°C

Humidity 64%
Wind Speed E 9 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 27 Aug 1:51 pm CDT
Extended Forecast for

2 Miles ESE Lakemoor IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Mostly sunny, with a high near 80. North northeast wind around 5 mph, with gusts as high as 10 mph.

    High: 80 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 58. East wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. South southwest wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 80. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 10pm.  Mostly cloudy, with a low around 67. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers after 1am.  Mostly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 87.

    High: 87 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 80. North northeast wind around 5 mph, with gusts as high as 10 mph.
Tonight
Mostly clear, with a low around 58. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 60. South southwest wind around 5 mph.
Saturday
Partly sunny, with a high near 80. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 71.
Monday
Mostly cloudy, with a high near 87.
Monday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Lakemoor IL
 42.33°N 88.17°W
1:21 pm CDT Aug 27, 2026
2pm CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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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