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.
Overnight
64°F
Clear
Clear, with a low around 64. Southeast wind around 1 mph.
7-day forecast for St. Libory
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Clear | 1 mph SE | 0% |
| Tuesday | 87°F | Patchy Fog then Sunny | 1 mph E | 0% |
| Tuesday Night | 66°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 89°F | Sunny | 0 to 3 mph S | 3% |
| Wednesday Night | 70°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph S | 50% |
| Thursday | 87°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph S | 68% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 2 mph S | 53% |
| Friday | 87°F | Chance Showers And Thunderstorms | 2 mph SW | 53% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 1 mph S | 39% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 3 mph S | 39% |
| Saturday Night | 71°F | Partly Cloudy | 5 mph S | 10% |
| Sunday | 91°F | Sunny | 3 to 7 mph S | 7% |
| Sunday Night | 73°F | Mostly Clear | 7 mph S | 5% |
| Monday | 93°F | Sunny | 5 to 8 mph S | 5% |
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 Aug 4, 2026.