National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Greater Kankakee Airport (KIKK)

Lat: 41.07°NLon: 87.85°WElev: 617ft.

Fair

78°F

26°C

Humidity 95%
Wind Speed S 9 mph
Barometer 29.95 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 30 Jun 12:55 am CDT
Extended Forecast for

Herscher IL

Heat Advisory June 30, 01:07am until July 1, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 30, 01:07am until July 1, 10:00pm

    NOW until 10:00pm Wed

    Heat Advisory

  • Overnight

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Heat index values as high as 108. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 76. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 76 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 77. South southwest wind around 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 93. Heat index values as high as 108. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 77. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 76. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 93.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Friday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Monday
A chance of showers. Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Herscher IL
 41.04°N 88.11°W
Last Update:
9:56 pm CDT Jun 29, 2026
Forecast Valid:
1am CDT Jun 30, 2026-6pm CDT Jul 6, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation