Irwin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Irwin, a village in Kankakee County, Illinois.
Tonight
59°F
Rain Showers
Rain showers. Cloudy. Low around 59, with temperatures rising to around 61 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 Irwin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Rain Showers | 15 mph S | 81% |
| Wednesday | 64°F | Chance Rain Showers then Mostly Cloudy | 15 mph SSW | 44% |
| Wednesday Night | 47°F | Mostly Cloudy | 10 mph SW | 6% |
| Thursday | 60°F | Partly Sunny | 10 to 15 mph WSW | 8% |
| Thursday Night | 42°F | Chance Rain Showers | 0 to 5 mph WNW | 31% |
| Friday | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NNW | 20% |
| Friday Night | 34°F | Partly Cloudy | 0 to 5 mph NNW | 9% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph WNW | 6% |
| Saturday Night | 32°F | Partly Cloudy | 0 mph | 3% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph W | 9% |
| Sunday Night | 32°F | Mostly Clear | 0 to 5 mph WNW | 9% |
| Monday | 64°F | Sunny | 0 to 10 mph WSW | 4% |
| Monday Night | 37°F | Mostly Clear | 5 mph WSW | 2% |
| Tuesday | 65°F | Sunny | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Irwin (41.053, -87.984). Updated through the day.
Growing snapshot for Irwin
Last spring frost
Apr 19
First fall frost
Oct 24
Growing season
188 days
Hardiness zone
5b
More local growing data for Irwin: nearby ZIP 60922 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Aroma Park
Bonfield
Bourbonnais
Bradley
Buckingham
Chebanse
Essex
Grant Park
Herscher
Hopkins Park
Kankakee
Limestone
Manteno
Momence
Reddick
Sammons Point
St. Anne
Sun River Terrace
Union Hill
Climate data from the nearest NOAA station, Kankakee Metro Wastewater, Il (8.7 mi from Irwin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.