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September 2025 Climate Summary

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Greater Kankakee Airport (KIKK)

Lat: 41.07°NLon: 87.85°WElev: 617ft.

Fair

61°F

16°C

Humidity	88%
Wind Speed	S 3 mph
Barometer	30.10 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	6 Oct 4:35 am CDT

More Information:

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

Extended Forecast for

Herscher IL

Today
High: 85 °F
Mostly Sunny
Tonight
Low: 60 °F
Showers
Likely
Tuesday
High: 67 °F
Chance
Showers
Tuesday Night
Low: 44 °F
Mostly Clear
Wednesday
High: 67 °F
Sunny
Wednesday Night
Low: 38 °F
Mostly Clear
Thursday
High: 66 °F
Sunny
Thursday Night
Low: 40 °F
Mostly Clear
Friday
High: 69 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 85. South wind 5 to 10 mph, with gusts as high as 15 mph.

Tonight

A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 3am, then showers likely after 3am. Mostly cloudy, with a low around 60. South wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly cloudy, with a high near 67. North wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

Tuesday Night

Mostly clear, with a low around 44. North wind around 5 mph, with gusts as high as 10 mph.

Wednesday

Sunny, with a high near 67. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Wednesday Night

Mostly clear, with a low around 38.

Thursday

Sunny, with a high near 66.

Thursday Night

Mostly clear, with a low around 40.

Friday

Mostly sunny, with a high near 69.