Kankakee, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kankakee, a city in Kankakee County, Illinois.
This Afternoon
77°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 77. East wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Kankakee
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Slight Chance Rain Showers | 10 mph E | 21% |
| Tonight | 63°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph ESE | 26% |
| Saturday | 82°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 66% |
| Saturday Night | 68°F | Showers And Thunderstorms Likely | 5 mph SW | 74% |
| Sunday | 73°F | Showers And Thunderstorms Likely | 5 to 10 mph NNE | 74% |
| Sunday Night | 56°F | Showers And Thunderstorms Likely | 10 mph NE | 70% |
| Monday | 67°F | Showers And Thunderstorms Likely | 10 mph ENE | 63% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Tuesday | 66°F | Slight Chance Rain Showers | 10 mph NE | 23% |
| Tuesday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 19% |
| Wednesday | 68°F | Partly Sunny | 5 to 10 mph NNE | 7% |
| Wednesday Night | 52°F | Mostly Cloudy | 0 to 5 mph NNE | 7% |
| Thursday | 70°F | Partly Sunny | 0 to 5 mph NNE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NNE | 4% |
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
Nearby towns & communities
Aroma Park
Bonfield
Bourbonnais
Bradley
Buckingham
Chebanse
Essex
Grant Park
Herscher
Hopkins Park
Irwin
Limestone
Manteno
Momence
Reddick
Sammons Point
St. Anne
Sun River Terrace
Union Hill
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 Sep 19, 2026.