Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

69°F

21°C

Humidity 90%
Wind Speed E 3 mph
Barometer 29.81 in (1007.9 mb)
Dewpoint 66°F (19°C)
Visibility 4.00 mi
Last update 18 Jun 6:51 am CDT
Extended Forecast for

Long Lake IL

  • Today

    Today: Showers and thunderstorms, mainly after 1pm.  High near 75. East wind 5 to 10 mph becoming south southeast in the morning.  Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 75 °F

    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 11pm, then a slight chance of showers after 11pm.  Mostly cloudy, with a low around 62. North wind 5 to 10 mph becoming west northwest after midnight.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 85. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Today
Showers and thunderstorms, mainly after 1pm. High near 75. East wind 5 to 10 mph becoming south southeast in the morning. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 11pm, then a slight chance of showers after 11pm. Mostly cloudy, with a low around 62. North wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Juneteenth
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 64. Southwest wind around 5 mph, with gusts as high as 10 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 94.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny and hot, with a high near 95.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 94.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
7:06 am CDT Jun 18, 2025
7am CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
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Additional Resources

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Hourly Weather Forecast

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