Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

A Few Clouds

77°F

25°C

Humidity 58%
Wind Speed N 9 mph
Barometer 30.03 in (1016.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Aug 10:52 am CDT
Extended Forecast for

South Barrington IL

  • Today

    Today: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 80. North northwest wind 5 to 10 mph.

    High: 80 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 60. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 81. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 85.

    High: 85 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers after 1am.  Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 80. North northwest wind 5 to 10 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 60. East northeast wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 81. Calm wind becoming west northwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 62. South wind around 5 mph.
Saturday
Partly sunny, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 72.
Monday
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.
Monday Night
A chance of showers after 1am. Partly cloudy, with a low around 72.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
South Barrington IL
 42.09°N 88.16°W
9:31 am CDT Aug 27, 2026
11am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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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