Kankakee, IL Weather & Growing Conditions
Tonight
63°F
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. East southeast wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Partly 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 | 67°F | Showers And Thunderstorms Likely | 5 mph SSW | 74% |
| Sunday | 73°F | Showers And Thunderstorms Likely | 5 to 10 mph NNE | 74% |
| Sunday Night | 55°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 70% |
| Monday | 67°F | Showers And Thunderstorms Likely | 10 mph ENE | 63% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Tuesday | 66°F | Slight Chance Rain Showers | 10 mph NE | 23% |
| Tuesday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 19% |
| Wednesday | 67°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 | 53°F | Partly Cloudy | 0 to 5 mph NNE | 4% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Kankakee, IL
Last spring frost
Apr 19
First fall frost
Oct 24
Growing season
188 days
Hardiness zone
5b
Explore more for Kankakee, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Kankakee Metro Wastewater, Il (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.