Severe Thunderstorms and Flash Flooding in the Central U.S.; A Dangerous Heatwave Coming to the West

A slow moving cold front will bring multiple rounds of widespread heavy rain, localized flash flooding, and severe thunderstorms from the central Plains into the Great Lakes through Saturday. A dangerous heatwave with record breaking and triple digit temperatures is expected this weekend into next week over the Northwest U.S. Excessive Heat Watches and Warnings have been issued. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Rain Fog/Mist

68°F

20°C

Humidity 93%
Wind Speed E 7 mph
Barometer 29.83 in (1009.2 mb)
Dewpoint 66°F (19°C)
Visibility 1.75 mi
Last update 25 Jun 5:55 am CDT
Extended Forecast for

Long Lake IL

  • Today

    Today: Showers and thunderstorms, mainly before 10am.  High near 81. South wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    T-storms then
    Scattered
    T-storms

    High: 81 °F

  • Tonight

    Tonight: Showers and thunderstorms, mainly after midnight.  Low around 67. South southwest wind 5 to 10 mph becoming southeast in the evening.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Scattered
    T-storms then
    T-storms

    Low: 67 °F

  • Saturday

    Saturday: Showers and thunderstorms.  High near 84. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    T-storms

    High: 84 °F

  • Saturday
    Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Low around 68. Southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.

    T-storms

    Low: 68 °F

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 1pm.  Mostly cloudy, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 82 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64.

    Chance
    T-storms

    Low: 64 °F

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

    Chance
    T-storms then
    Showers
    Likely

    High: 81 °F

  • Monday
    Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 65.

    Chance
    T-storms

    Low: 65 °F

  • Tuesday

    Tuesday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 82.

    Chance
    T-storms

    High: 82 °F

Detailed Forecast

Today
Showers and thunderstorms, mainly before 10am. High near 81. South wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and thunderstorms, mainly after midnight. Low around 67. South southwest wind 5 to 10 mph becoming southeast in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and thunderstorms. High near 84. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 68. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Tuesday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 78.
Click Map For Forecast
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
5:15 am CDT Jun 25, 2021
6am CDT Jun 25, 2021-6pm CDT Jul 1, 2021
 
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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