National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Partly Cloudy

73°F

23°C

Humidity 81%
Wind Speed Calm
Barometer 30.01 in (1014.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 16 Aug 11:51 pm CDT
Extended Forecast for

3 Miles SSE Channel Lake IL

  • Overnight

    Overnight: Showers and thunderstorms likely, mainly before 5am. Cloudy, with a low around 70. North wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 79. Northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 79 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. Northeast wind 5 to 10 mph.

    Low: 69 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Southeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 89 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind 5 to 10 mph.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly before 5am. Cloudy, with a low around 70. North wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 79. Northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. Northeast wind 5 to 10 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Southeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Channel Lake IL
 42.44°N 88.14°W
Last Update:
9:26 pm CDT Aug 16, 2025
Forecast Valid:
12am CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation