Severe Thunderstorms and Heavy Rainfall Across the Central Plains and Central Appalachians

Severe thunderstorms producing damaging winds, heavy rainfall, hail and possibly a few tornadoes will continue through tonight across portions of Kansas and Oklahoma. Heavy rainfall will persist across the Central Appalachians through tonight, potentially leading to areas of flooding. The severe weather and heavy rainfall threat will shift into the lower Great Lakes on Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

76°F

24°C

Humidity 64%
Wind Speed S 8 mph
Barometer 29.78 in (1007.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Jun 11:51 pm CDT
Extended Forecast for

2 Miles NNE Winthrop Harbor IL

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. West wind around 5 mph.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall.  High near 71. South wind 5 to 15 mph becoming northeast in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 71 °F

    Chance
    Showers then
    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 1am.  Mostly cloudy, with a low around 61. Northwest wind 10 to 15 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: Sunny, with a high near 72. West wind 5 to 10 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Southwest wind 5 to 10 mph.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 75. South wind 10 to 15 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 71. South wind 10 to 15 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 82. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 82 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West wind around 5 mph.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 71. South wind 5 to 15 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 1am. Mostly cloudy, with a low around 61. Northwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 72. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 65. Southwest wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 75. South wind 10 to 15 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. South wind 10 to 15 mph.
Saturday
Sunny, with a high near 82. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 89.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Winthrop Harbor IL
 42.52°N 87.81°W (Elev. 577 ft)
11:08 pm CDT Jun 17, 2025
12am CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
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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