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Kankakee, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Kankakee, a city in Kankakee County, Illinois.

This Afternoon
74°F
Chance Rain
A chance of rain. Partly sunny. High near 74, with temperatures falling to around 71 in the afternoon. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.

7-day forecast for Kankakee

WhenTempForecastWindPrecip
This Afternoon 74°F Chance Rain 15 to 20 mph S 32%
Tonight 59°F Rain 15 mph SSE 80%
Wednesday 65°F Chance Rain then Mostly Cloudy 10 to 15 mph SSW 45%
Wednesday Night 47°F Mostly Cloudy 10 mph SW 6%
Thursday 61°F Partly Sunny 5 to 15 mph WSW 8%
Thursday Night 42°F Chance Rain 0 to 5 mph WNW 33%
Friday 56°F Slight Chance Rain then Mostly Cloudy 5 to 10 mph NNW 21%
Friday Night 35°F Partly Cloudy 0 to 5 mph NNW 9%
Saturday 54°F Mostly Sunny 0 to 5 mph WNW 7%
Saturday Night 32°F Partly Cloudy 0 mph 3%
Sunday 58°F Mostly Sunny 0 to 5 mph W 10%
Sunday Night 33°F Mostly Clear 0 to 5 mph WNW 9%
Monday 63°F Sunny 0 to 10 mph WSW 4%
Monday Night 38°F Mostly Clear 0 to 5 mph WSW 2%

Forecast source: National Weather Service (api.weather.gov) for Kankakee (41.102, -87.864). Updated through the day.

Growing snapshot for Kankakee

Last spring frost
Apr 19
First fall frost
Oct 24
Growing season
188 days
Hardiness zone
5b

More local growing data for Kankakee: nearby ZIP 60901 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Kankakee Metro Wastewater, Il (2 mi from Kankakee). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.