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August 11, 2026: Derecho produces widespread wind damage and tornadoes across northern Illinois and northwest Indiana

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

N/A

Humidity	NA
Wind Speed	NA
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	* Not a current observation *

More Information:

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

Extended Forecast for

Tinley Park IL

Flood Watch August 15, 08:14am until August 15, 10:00am

Click here for hazard details and duration

...

Flood Watch August 15, 08:14am until August 15, 10:00am
NOW until 10:00am Sat
Flood Watch
Today
High: 81 °F
Showers then
Chance
Showers
Tonight
Low: 72 °F
Chance
Showers then
Chance
T-storms
Sunday
High: 84 °F
Showers
Likely then
Partly Sunny
Sunday Night
Low: 67 °F
Partly Cloudy
Monday
High: 80 °F
Mostly Sunny
Monday Night
Low: 63 °F
Mostly Clear
Tuesday
High: 81 °F
Mostly Sunny
Tuesday Night
Low: 68 °F
Mostly Cloudy
then Showers
Likely

Detailed Forecast

Today

Showers and possibly a thunderstorm before noon, then a chance of showers. High near 81. South southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Tonight

A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. West southwest wind around 5 mph. Chance of precipitation is 40%.

Sunday

Showers and thunderstorms likely before 9am, then a slight chance of showers between 9am and 10am. Mostly cloudy, with a high near 84. West northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Partly cloudy, with a low around 67. Northwest wind 5 to 10 mph.

Monday

Mostly sunny, with a high near 80. North wind around 5 mph.

Monday Night

Mostly clear, with a low around 63.

Tuesday

Mostly sunny, with a high near 81.

Tuesday Night

Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68.

Wednesday

A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79.