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

Heavy to Excessive Rainfall for the Southwest U.S.; Watching for Possible East Coast Storm

Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

57°F

14°C

Humidity 55%
Wind Speed NE 6 mph
Barometer 30.39 in (1029.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 8 Oct 5:51 pm CDT
Extended Forecast for

Mc Henry IL

  • Tonight

    Tonight: Mostly clear, with a low around 38. East northeast wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Calm wind becoming south southeast around 5 mph in the morning. Winds could gust as high as 10 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. South wind around 5 mph, with gusts as high as 10 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 68. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.

    Low: 44 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 38. East northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 64. Calm wind becoming south southeast around 5 mph in the morning. Winds could gust as high as 10 mph.
Thursday Night
Mostly clear, with a low around 44. South wind around 5 mph, with gusts as high as 10 mph.
Friday
Partly sunny, with a high near 68. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 52.
Columbus Day
Partly sunny, with a high near 74.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Henry IL
 42.34°N 88.29°W
Last Update:
4:11 pm CDT Oct 8, 2025
Forecast Valid:
6pm CDT Oct 8, 2025-6pm CDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

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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