Coulterville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coulterville, a village in Perry County, Illinois.
This Afternoon
97°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 3pm. Sunny. High near 97, with temperatures falling to around 95 in the afternoon. Heat index values as high as 105. South southwest wind around 2 mph. Chance of precipitation is 30%.
7-day forecast for Coulterville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Chance Showers And Thunderstorms | 2 mph SSW | 26% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph SSE | 24% |
| Saturday | 97°F | Mostly Sunny | 3 to 7 mph SW | 6% |
| Saturday Night | 71°F | Partly Cloudy | 5 mph SSW | 0% |
| Sunday | 94°F | Mostly Sunny | 3 to 7 mph W | 8% |
| Sunday Night | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph NNE | 40% |
| Monday | 84°F | Showers And Thunderstorms Likely | 5 to 9 mph N | 55% |
| Monday Night | 60°F | Showers And Thunderstorms Likely | 6 to 9 mph N | 55% |
| Tuesday | 73°F | Slight Chance Rain Showers then Partly Sunny | 8 to 12 mph N | 18% |
| Tuesday Night | 54°F | Partly Cloudy | 5 to 10 mph N | 7% |
| Wednesday | 74°F | Mostly Sunny | 6 to 9 mph N | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 7 mph NNE | 2% |
| Thursday | 76°F | Mostly Sunny | 3 to 8 mph N | 1% |
| Thursday Night | 56°F | Partly Cloudy | 6 mph NNE | 2% |
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 Sep 18, 2026.