Coulterville, IL Weather & Growing Conditions
Today
60°F
Mostly Cloudy
Mostly cloudy, with a high near 60. West southwest wind 5 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 60°F | Mostly Cloudy | 5 to 12 mph WSW | 12% |
| Tonight | 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 6 mph N | 0% |
| Saturday | 55°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph NNW | 0% |
| Sunday | 60°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 WNW | 1% |
| Tuesday Night | 42°F | Mostly Clear | 1 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Coulterville, IL
Last spring frost
Apr 12
First fall frost
Oct 22
Growing season
191 days
Hardiness zone
6b
Explore more for Coulterville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Sparta 1 W, Il (9.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.