St. Libory, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Libory, a village in St. Clair County, Illinois.
This Afternoon
74°F
Slight Chance T-storms
A slight chance of thunderstorms and a slight chance of rain before 2pm, then rain and a slight chance of thunderstorms. Cloudy. High near 74, with temperatures falling to around 70 in the afternoon. South wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 90%.
7-day forecast for St. Libory
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Slight Chance T-storms | 18 to 23 mph S | 86% |
| Tonight | 55°F | Rain | 8 to 15 mph S | 97% |
| Wednesday | 65°F | Chance Rain Showers then Mostly Cloudy | 5 to 13 mph SW | 11% |
| Wednesday Night | 43°F | Partly Cloudy | 3 mph SW | 0% |
| Thursday | 68°F | Sunny | 3 to 9 mph W | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 3 mph NW | 6% |
| Friday | 59°F | Mostly Cloudy | 3 to 10 mph NW | 5% |
| Friday Night | 39°F | Mostly Cloudy | 5 mph N | 1% |
| Saturday | 56°F | Partly Sunny | 3 mph NW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 62°F | Sunny | 0 to 6 mph W | 6% |
| Sunday Night | 35°F | Mostly Clear | 2 mph NW | 5% |
| Monday | 66°F | Sunny | 1 to 7 mph W | 2% |
| Monday Night | 39°F | Mostly Clear | 2 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for St. Libory (38.363, -89.718). Updated through the day.
Growing snapshot for St. Libory
Last spring frost
Apr 12
First fall frost
Oct 20
Growing season
189 days
Hardiness zone
6b
More local growing data for St. Libory: nearby ZIP 62282 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Belleville Siu Rsch, Il (13.4 mi from St. Libory). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.