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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.

Overcast

75°F

24°C

Humidity	71%
Wind Speed	S 6 mph
Barometer	30.00 in (1015.2 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	9 Sep 2:51 am CDT

More Information:

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

Extended Forecast for

Amf Ohare IL

Overnight
Low: 75 °F
Showers
Wednesday
High: 78 °F
Showers then
Chance
Showers
Wednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 78 °F
Mostly Sunny
Thursday Night
Low: 62 °F
Mostly Clear
Friday
High: 80 °F
Sunny
Friday Night
Low: 64 °F
Mostly Clear
Saturday
High: 83 °F
Chance
Showers
Saturday Night
Low: 66 °F
Mostly Cloudy

Detailed Forecast

Overnight

Showers likely before 4am, then showers and possibly a thunderstorm between 4am and 5am, then showers likely after 5am. Steady temperature around 75. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Showers and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm. High near 78. Southwest wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

Partly cloudy, with a low around 66. West wind around 5 mph becoming north northwest after midnight.

Thursday

Mostly sunny, with a high near 78. North wind around 5 mph, with gusts as high as 10 mph.

Thursday Night

Mostly clear, with a low around 62. East northeast wind around 5 mph becoming calm in the evening.

Friday

Sunny, with a high near 80.

Friday Night

Mostly clear, with a low around 64.

Saturday

A chance of showers. Partly sunny, with a high near 83.