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

Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

75°F

24°C

Humidity 82%
Wind Speed SW 9 mph
Barometer 29.96 in (1013.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 9 Sep 6:51 pm CDT
Extended Forecast for

Pistakee Highlands IL

  • Tonight

    Tonight: Partly cloudy, with a low around 60. West wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 78. North northwest wind around 5 mph.

    High: 78 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. South wind around 5 mph, with gusts as high as 10 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. West wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 10 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 78. North northwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around 51. Calm wind.
Friday
Sunny, with a high near 79. Light and variable wind becoming south 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 60. South wind around 5 mph, with gusts as high as 10 mph.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 62.
Monday
A chance of showers. Partly sunny, with a high near 84.
Monday Night
Showers likely. Mostly cloudy, with a low around 63.
Tuesday
A chance of showers. Mostly cloudy, with a high near 78.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 58.
Wednesday
A chance of showers. Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pistakee Highlands IL
 42.38°N 88.2°W
Last Update:
2:31 pm CDT Sep 9, 2026
Forecast Valid:
7pm CDT Sep 9, 2026-6pm CDT Sep 16, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation