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September 1-4, 2026: Abnormally Hot and Humid Start to September

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago, Chicago-O'Hare International Airport (KORD)

Lat: 41.98°NLon: 87.9°WElev: 666ft.

Partly Cloudy

85°F

29°C

Humidity	43%
Wind Speed	S 12 mph
Barometer	30.04 in (1016.7 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	8 Sep 4:51 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Elmhurst IL

Tonight
Low: 72 °F
Mostly Cloudy
then Chance
T-storms
Wednesday
High: 80 °F
Showers
Likely
Wednesday Night
Low: 66 °F
Mostly Cloudy
Thursday
High: 79 °F
Decreasing
Clouds
Thursday Night
Low: 59 °F
Mostly Clear
Friday
High: 79 °F
Sunny
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 85 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 66 °F
Chance
Showers

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. Southwest wind around 10 mph, with gusts as high as 15 mph.

Wednesday

Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 80. West southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Mostly cloudy, with a low around 66. West wind around 5 mph.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 79. North wind around 5 mph, with gusts as high as 10 mph.

Thursday Night

Mostly clear, with a low around 59. North northeast wind around 5 mph becoming calm in the evening.

Friday

Sunny, with a high near 79.

Friday Night

Mostly clear, with a low around 65.

Saturday

A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.