Grant Park, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grant Park, a village in Kankakee County, Illinois.
Overnight
60°F
Rain Showers
Rain showers. Cloudy. Low around 60, with temperatures rising to around 63 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Grant Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Rain Showers | 15 mph S | 82% |
| Wednesday | 65°F | Scattered Rain Showers then Patchy Drizzle | 15 mph SW | 42% |
| Wednesday Night | 47°F | Patchy Drizzle then Mostly Cloudy | 10 to 15 mph SW | 10% |
| Thursday | 58°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph WSW | 28% |
| Thursday Night | 41°F | Chance Rain Showers | 5 to 10 mph NW | 50% |
| Friday | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NNW | 19% |
| Friday Night | 34°F | Partly Cloudy | 5 to 10 mph NW | 3% |
| Saturday | 52°F | Mostly Sunny | 5 mph NW | 1% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph WNW | 0% |
| Sunday | 55°F | Sunny | 5 to 10 mph W | 5% |
| Sunday Night | 32°F | Mostly Clear | 0 to 5 mph W | 1% |
| Monday | 61°F | Sunny | 0 to 5 mph SW | 1% |
| Monday Night | 38°F | Mostly Clear | 5 mph WSW | 1% |
| Tuesday | 62°F | Sunny | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grant Park (41.243, -87.636). Updated through the day.
Growing snapshot for Grant Park
Last spring frost
Apr 29
First fall frost
Oct 16
Growing season
171 days
Hardiness zone
5b
More local growing data for Grant Park: nearby ZIP 60940 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Aroma Park
Bonfield
Bourbonnais
Bradley
Buckingham
Chebanse
Essex
Herscher
Hopkins Park
Irwin
Kankakee
Limestone
Manteno
Momence
Reddick
Sammons Point
St. Anne
Sun River Terrace
Union Hill
Climate data from the nearest NOAA station, Lowell, In (11.7 mi from Grant Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.