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
61°F
Mostly Clear
Mostly clear, with a low around 61. South wind around 0 mph.
7-day forecast for Grant Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 84°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Tuesday Night | 63°F | Partly Cloudy | 0 to 5 mph S | 1% |
| Wednesday | 82°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 30% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph WSW | 85% |
| Thursday | 78°F | Showers And Thunderstorms | 0 to 5 mph SSW | 85% |
| Thursday Night | 61°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 53% |
| Friday | 81°F | Mostly Sunny | 0 mph | 7% |
| Friday Night | 62°F | Partly Cloudy | 0 mph | 10% |
| Saturday | 83°F | Mostly Sunny | 0 to 5 mph SSW | 10% |
| Saturday Night | 67°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 15% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 15 mph SW | 15% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 33% |
| Monday | 85°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 33% |
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 Aug 4, 2026.