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August 11, 2026: Powerful Derecho Produces Widespread Wind Damage and Tornadoes Across Northern Illinois and Northwest Indiana

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

A Few Clouds

76°F

24°C

Humidity	48%
Wind Speed	N 8 mph
Barometer	30.06 in (1017.1 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	20 Aug 10:53 am CDT

More Information:

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

Extended Forecast for

Chicago IL

Today
High: 77 °F
Sunny
Tonight
Low: 63 °F
Mostly Clear
Friday
High: 81 °F
Slight Chance
T-storms then
Chance
T-storms
Friday Night
Low: 66 °F
Chance
T-storms
Saturday
High: 77 °F
Mostly Sunny
Saturday Night
Low: 64 °F
Mostly Clear
Sunday
High: 74 °F
Sunny
Sunday Night
Low: 62 °F
Partly Cloudy
Monday
High: 77 °F
Mostly Sunny

Detailed Forecast

Today

Sunny, with a high near 77. Northeast wind 5 to 10 mph.

Tonight

Mostly clear, with a low around 63. Northeast wind around 5 mph becoming calm.

Friday

A 50 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 81. Light south southwest wind increasing to 5 to 10 mph in the morning.

Friday Night

A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Southwest wind around 5 mph, with gusts as high as 10 mph.

Saturday

Mostly sunny, with a high near 77. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday Night

Mostly clear, with a low around 64.

Sunday

Sunny, with a high near 74.

Sunday Night

Partly cloudy, with a low around 62.

Monday

Mostly sunny, with a high near 77.

Monday Night

Partly cloudy, with a low around 63.