Heavy Rain in the Southern Appalachians; Heat Continues in the West; Monitoring Tropical Storm Erin

Heavy to excessive rain falling over the southern Appalachians may bring areas of flooding into Wednesday. Hot temperatures are in place through Wednesday across parts of the western U.S. and New England. Tropical Storm Erin is forecast to become a Hurricane by late this week as it moves westward across the central Atlantic Ocean. Monitor forecasts for any Puerto Rico or U.S. East Coast impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Mostly Cloudy

76°F

24°C

Humidity 74%
Wind Speed W 6 mph
Barometer 29.90 in (1012.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 12 Aug 8:52 pm CDT
Extended Forecast for

Dundee IL

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm.  Partly cloudy, with a low around 66. Southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 82. North northwest wind around 5 mph, with gusts as high as 10 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. North wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 10pm. Partly cloudy, with a low around 66. Southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny, with a high near 82. North northwest wind around 5 mph, with gusts as high as 10 mph.
Wednesday Night
Mostly clear, with a low around 61. North wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 81. Calm wind becoming east northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 61. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 68.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Dundee IL
 42.12°N 88.28°W
7:56 pm CDT Aug 12, 2025
8pm CDT Aug 12, 2025-6pm CDT Aug 19, 2025
 
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Additional Resources

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Hourly Weather Forecast

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