Coal City, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coal City, a village in Grundy County, Illinois.
This Afternoon
64°F
Slight Chance Rain Showers
A slight chance of rain showers and a slight chance of drizzle. Cloudy. High near 64, with temperatures falling to around 56 in the afternoon. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast for Coal City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Slight Chance Rain Showers | 10 to 15 mph WSW | 10% |
| Tonight | 47°F | Slight Chance Rain Showers then Cloudy | 10 to 15 mph SW | 9% |
| Thursday | 56°F | Mostly Cloudy then Chance Rain | 10 to 15 mph WSW | 41% |
| Thursday Night | 39°F | Chance Rain then Cloudy | 5 to 10 mph NW | 52% |
| Friday | 51°F | Partly Sunny | 10 mph NNW | 2% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph NNW | 0% |
| Saturday | 52°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 mph | 0% |
| Sunday | 59°F | Sunny | 0 to 5 mph W | 1% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 63°F | Sunny | 0 to 5 mph WSW | 0% |
| Monday Night | 39°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Tuesday | 64°F | Sunny | 0 to 5 mph WNW | 0% |
| Tuesday Night | 37°F | Partly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Coal City (41.279, -88.280). Updated through the day.
Growing snapshot for Coal City
Last spring frost
Apr 16
First fall frost
Oct 26
Growing season
191 days
Hardiness zone
5b
More local growing data for Coal City: nearby ZIP 60416 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Braceville
Carbon Hill
Diamond
East Brooklyn
Gardner
Godley
Kinsman
Mazon
Morris
South Wilmington
Verona
Climate data from the nearest NOAA station, Channahon Dresden Isl Dam, Il (7.2 mi from Coal City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.