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
97°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Sunny, with a high near 97. Heat index values as high as 106. Southwest wind around 2 mph. Chance of precipitation is 30%.
7-day forecast for St. Libory
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Chance Showers And Thunderstorms | 2 mph SW | 26% |
| Tonight | 71°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 mph SE | 24% |
| Saturday | 97°F | Mostly Sunny | 2 to 7 mph SW | 6% |
| Saturday Night | 72°F | Partly Cloudy | 3 mph S | 0% |
| Sunday | 94°F | Mostly Sunny | 2 to 6 mph W | 14% |
| Sunday Night | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph N | 45% |
| Monday | 82°F | Showers And Thunderstorms Likely | 5 to 9 mph N | 60% |
| Monday Night | 60°F | Showers And Thunderstorms Likely | 6 to 10 mph N | 60% |
| Tuesday | 72°F | Slight Chance Rain Showers then Partly Sunny | 8 to 12 mph N | 23% |
| Tuesday Night | 54°F | Mostly Cloudy | 5 to 10 mph N | 7% |
| Wednesday | 75°F | Mostly Sunny | 8 mph N | 3% |
| Wednesday Night | 55°F | Partly Cloudy | 2 to 7 mph N | 2% |
| Thursday | 76°F | Mostly Sunny | 2 to 7 mph N | 1% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 6 mph N | 2% |
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 Sep 18, 2026.