Centralia, IL Weather & Growing Conditions
This Afternoon
76°F
Slight Chance T-storms
A slight chance of thunderstorms and a slight chance of rain between 3pm and 5pm, then a chance of rain and a slight chance of thunderstorms. Mostly cloudy. High near 76, with temperatures falling to around 72 in the afternoon. South wind 20 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Slight Chance T-storms | 20 to 23 mph S | 34% |
| Tonight | 55°F | Rain | 10 to 16 mph S | 99% |
| Wednesday | 66°F | Slight Chance Light Rain then Mostly Cloudy | 6 to 14 mph SW | 16% |
| Wednesday Night | 43°F | Partly Cloudy | 3 mph SW | 0% |
| Thursday | 67°F | Sunny | 3 to 12 mph SW | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 2 mph W | 4% |
| Friday | 60°F | Mostly Cloudy | 3 to 12 mph NW | 4% |
| Friday Night | 38°F | Partly Cloudy | 1 to 6 mph N | 1% |
| Saturday | 57°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 62°F | Sunny | 0 to 8 mph NW | 6% |
| Sunday Night | 34°F | Mostly Clear | 2 mph NW | 5% |
| Monday | 65°F | Sunny | 1 to 9 mph W | 2% |
| Monday Night | 39°F | Mostly Clear | 2 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Centralia, IL
Last spring frost
Apr 9
First fall frost
Oct 24
Growing season
196 days
Hardiness zone
6b
Explore more for Centralia, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Iuka 12 Sw, Il (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.