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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Rain

63°F

17°C

Humidity 97%
Wind Speed NE 13 G 25 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 62°F (17°C)
Visibility 9.00 mi
Last update 20 Sep 6:51 am CDT
Extended Forecast for

Ingleside ILSimilar City Names

Flood Watch September 20, 07:11am until September 20, 01:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 20, 07:11am until September 20, 01:00pm

    NOW until 1:00pm Sun

    Flood Watch

  • Today

    High: 65 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Cloudy, with a low around 55. East northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Cloudy then
    Slight Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers. Cloudy, with a high near 63. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 63 °F

    Slight Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 51. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms before 1pm, then a chance of showers. Patchy fog before 10am. Steady temperature around 65. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers after 2am. Cloudy, with a low around 55. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday
A 20 percent chance of showers. Cloudy, with a high near 63. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 62. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ingleside ILSimilar City Names
 42.36°N 88.14°W
Last Update:
3:36 am CDT Sep 20, 2026
Forecast Valid:
7am CDT Sep 20, 2026-6pm CDT Sep 26, 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