Ste. Genevieve, IL Weather & Growing Conditions
Tonight
54°F
Rain
Rain before 2am, then a slight chance of drizzle between 2am and 5am. Mostly cloudy, with a low around 54. South wind 6 to 15 mph. Chance of precipitation is 80%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain | 6 to 15 mph S | 78% |
| Wednesday | 66°F | Partly Sunny | 6 to 9 mph W | 3% |
| Wednesday Night | 41°F | Mostly Clear | 3 mph SW | 0% |
| Thursday | 69°F | Sunny | 3 to 7 mph W | 0% |
| Thursday Night | 42°F | Mostly Cloudy | 5 mph NW | 7% |
| Friday | 60°F | Partly Sunny | 5 to 9 mph NW | 2% |
| Friday Night | 37°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Saturday | 58°F | Partly Sunny | 5 mph N | 0% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph NW | 1% |
| Sunday | 64°F | Sunny | 1 to 6 mph W | 5% |
| Sunday Night | 34°F | Mostly Clear | 3 mph W | 5% |
| Monday | 68°F | Sunny | 1 to 7 mph W | 1% |
| Monday Night | 38°F | Mostly Clear | 5 mph SW | 0% |
| Tuesday | 71°F | Sunny | 2 to 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ste. Genevieve, IL
Last spring frost
Apr 8
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
7a
Explore more for Ste. Genevieve, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Kaskaskia Rvr Navigation Lock, Il (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.