Coulterville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coulterville, a village in Perry County, Illinois.
Overnight
56°F
Mostly Cloudy
Mostly cloudy. Low around 56, with temperatures rising to around 58 overnight. West southwest wind around 8 mph.
7-day forecast for Coulterville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Cloudy | 8 mph WSW | 7% |
| Wednesday | 61°F | Slight Chance Drizzle then Mostly Cloudy | 6 to 12 mph W | 11% |
| Wednesday Night | 43°F | Mostly Clear | 5 mph WSW | 0% |
| Thursday | 66°F | Sunny | 3 to 8 mph W | 0% |
| Thursday Night | 45°F | Partly Cloudy | 3 mph NW | 1% |
| Friday | 58°F | Partly Sunny | 5 to 12 mph NNW | 1% |
| Friday Night | 36°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Saturday | 55°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph NNW | 0% |
| Sunday | 61°F | Sunny | 1 to 6 mph NW | 1% |
| Sunday Night | 35°F | Clear | 1 mph WNW | 0% |
| Monday | 65°F | Sunny | 1 to 5 mph SW | 0% |
| Monday Night | 39°F | Clear | 2 mph SW | 1% |
| Tuesday | 68°F | Sunny | 1 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Coulterville (38.185, -89.604). Updated through the day.
Growing snapshot for Coulterville
Last spring frost
Apr 12
First fall frost
Oct 22
Growing season
191 days
Hardiness zone
6b
More local growing data for Coulterville: nearby ZIP 62237 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sparta 1 W, Il (9.8 mi from Coulterville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.