National Weather Service

News Headlines

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

Hazardous Weather Conditions

Current conditions at

Greater Kankakee Airport (KIKK)

Lat: 41.07°NLon: 87.85°WElev: 617ft.

Mostly Cloudy

72°F

22°C

Humidity	95%
Wind Speed	E 3 mph
Barometer	30.11 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	15 Aug 1:15 am CDT

More Information:

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

Extended Forecast for

Gilman IL

Flood Watch until August 15, 10:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until August 15, 10:00am
NOW until 10:00am Sat
Flood Watch
Overnight
Low: 71 °F
Showers
Saturday
High: 84 °F
Heavy Rain
then Chance
Showers
Saturday Night
Low: 73 °F
Slight Chance
Showers then
Chance
T-storms
Sunday
High: 85 °F
Chance
T-storms
Sunday Night
Low: 66 °F
Partly Cloudy
Monday
High: 81 °F
Mostly Sunny
Monday Night
Low: 62 °F
Partly Cloudy
Tuesday
High: 83 °F
Mostly Sunny

Detailed Forecast

Overnight

A slight chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 4am, then showers and possibly a thunderstorm after 4am. Low around 71. East southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then a slight chance of showers after 3pm. Some of the storms could produce heavy rainfall. High near 84. South southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Saturday Night

A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 73. Southwest wind around 5 mph. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. West northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

Sunday Night

Partly cloudy, with a low around 66. Northwest wind around 5 mph, with gusts as high as 10 mph.

Monday

Mostly sunny, with a high near 81.

Monday Night

Partly cloudy, with a low around 62.

Tuesday

Mostly sunny, with a high near 83.

Tuesday Night

A chance of showers after 1am. Mostly cloudy, with a low around 67.

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 82.