Coulterville, IL Weather & Growing Conditions
This Afternoon
98°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Sunny. High near 98, with temperatures falling to around 87 in the afternoon. South southwest wind around 7 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Chance Showers And Thunderstorms | 7 mph SSW | 26% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 5 mph SSE | 24% |
| Saturday | 97°F | Mostly Sunny | 6 mph SW | 8% |
| Saturday Night | 72°F | Partly Cloudy | 5 mph SSW | 4% |
| Sunday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph W | 16% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph NNE | 40% |
| Monday | 84°F | Showers And Thunderstorms Likely | 5 to 8 mph N | 55% |
| Monday Night | 60°F | Showers And Thunderstorms Likely | 6 to 9 mph NNE | 55% |
| Tuesday | 73°F | Slight Chance Rain Showers then Partly Sunny | 8 to 12 mph N | 19% |
| Tuesday Night | 55°F | Partly Cloudy | 5 to 10 mph N | 6% |
| Wednesday | 74°F | Mostly Sunny | 6 to 9 mph N | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 6 mph NNE | 2% |
| Thursday | 76°F | Mostly Sunny | 3 to 8 mph NNE | 1% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 6 mph NNE | 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 Sep 19, 2026.