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

Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture from the remnants of Odalys and Hurricane Polo will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Flood Watches have been issued through Wednesday in the southwest U.S. and moderate risk outlooks have been issued today through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

61°F

16°C

Humidity 84%
Wind Speed NW 3 mph
Barometer 30.12 in (1019.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 28 Sep 9:51 am CDT
Extended Forecast for

Lake Bluff IL

  • Today

    Today: Sunny, with a high near 69. East northeast wind around 5 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, increasing clouds, with a low around 56. Northeast wind around 5 mph becoming calm.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 72. Light and variable wind becoming south southeast 5 to 10 mph in the morning.

    High: 72 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 61. South wind 5 to 10 mph.

    Low: 61 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 74. South wind around 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 69. East northeast wind around 5 mph.
Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 56. Northeast wind around 5 mph becoming calm.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 72. Light and variable wind becoming south southeast 5 to 10 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 61. South wind 5 to 10 mph.
Wednesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 74. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 80%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56.
Friday
Partly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Bluff IL
 42.28°N 87.85°W
Last Update:
9:36 am CDT Sep 28, 2026
Forecast Valid:
10am CDT Sep 28, 2026-6pm CDT Oct 4, 2026
 
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