Wildfire Smoke and Severe Thunderstorms in the East; Monsoon Thunderstorms in the Southwest

Wildfire smoke continues to impact air quality from the Great Lakes region into New England and the Mid-Atlantic today with widespread Air Quality Alerts in effect. Severe thunderstorms are expected across portions of the Ohio Valley and Lower Great Lakes into the Mid-Atlantic and Northeast, this afternoon into the evening. Monsoonal thunderstorms may bring areas of flooding to the Southwest. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair with Haze

78°F

26°C

Humidity 69%
Wind Speed NE 9 mph
Barometer 29.90 in (1011.3 mb)
Dewpoint 67°F (19°C)
Visibility 5.00 mi
Heat Index80°F (27°C)
Last update 18 Jul 5:51 pm CDT
Extended Forecast for

Lake Bluff IL

  • Tonight

    Tonight: Widespread smoke, mainly after 1am. Partly cloudy, with a low around 67. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Smoke

  • Sunday

    Sunday: Areas of smoke. Mostly sunny, with a high near 74. East northeast wind 5 to 10 mph.

    High: 74 °F

    Areas Smoke

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. East northeast wind around 5 mph becoming south southwest after midnight.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 86. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 70. Southwest wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%.

    Low: 70 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 84. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread smoke, mainly after 1am. Partly cloudy, with a low around 67. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Areas of smoke. Mostly sunny, with a high near 74. East northeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 65. East northeast wind around 5 mph becoming south southwest after midnight.
Monday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 86. South southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Tuesday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Partly sunny, with a high near 80.
Friday Night
Mostly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Bluff IL
 42.28°N 87.85°W
6:31 pm CDT Jul 18, 2026
6pm CDT Jul 18, 2026-6pm CDT Jul 25, 2026
 
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