Coal City, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coal City, a community in Owen County, Indiana.
This Afternoon
91°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny. High near 91, with temperatures falling to around 89 in the afternoon. South southwest wind around 3 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Coal City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Slight Chance Showers And Thunderstorms | 3 mph SSW | 24% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 3 mph SSE | 17% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph WSW | 16% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 6 to 9 mph NNE | 48% |
| Monday | 77°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 mph NE | 58% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 7 to 12 mph NE | 51% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 9 mph NE | 40% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 3 to 10 mph NNE | 40% |
| Wednesday | 72°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 3 to 8 mph N | 17% |
| Wednesday Night | 57°F | Mostly Cloudy | 2 to 8 mph N | 7% |
| Thursday | 74°F | Partly Sunny | 2 to 7 mph N | 3% |
| Thursday Night | 57°F | Mostly Cloudy | 1 to 7 mph NNE | 4% |
| Friday | 76°F | Partly Sunny | 2 to 7 mph NNE | 4% |
| Friday Night | 56°F | Partly Cloudy | 2 to 7 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Coal City (39.228, -87.044). Updated through the day.
Growing snapshot for Coal City
Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
180 days
Hardiness zone
6a
More local growing data for Coal City: nearby ZIP 47427 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Spencer, In (13.1 mi from Coal City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.