Caledonia, IL Weather & Growing Conditions
This Afternoon
67°F
Rain Showers
Rain showers. Cloudy. High near 67, with temperatures falling to around 64 in the afternoon. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Rain Showers | 15 mph S | 82% |
| Tonight | 57°F | Rain Showers | 15 mph SSE | 84% |
| Wednesday | 60°F | Chance Rain Showers | 15 mph SSW | 51% |
| Wednesday Night | 46°F | Chance Rain Showers | 15 mph SW | 31% |
| Thursday | 55°F | Rain Showers Likely | 10 to 15 mph WSW | 59% |
| Thursday Night | 40°F | Chance Rain Showers | 5 to 10 mph NW | 34% |
| Friday | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph N | 18% |
| Friday Night | 32°F | Partly Cloudy | 0 to 10 mph NNW | 2% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph WNW | 2% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph WSW | 4% |
| Sunday | 57°F | Mostly Sunny then Slight Chance Rain | 5 to 10 mph W | 16% |
| Sunday Night | 34°F | Mostly Clear | 5 to 10 mph W | 5% |
| Monday | 60°F | Sunny | 5 to 15 mph SW | 2% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Caledonia, IL
Last spring frost
May 1
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
5b
Explore more for Caledonia, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Beloit, Wi (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.