Capron, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Capron, a village in Boone County, Illinois.
Overnight
60°F
Mostly Clear
Mostly clear. Low around 60, with temperatures rising to around 62 overnight. South southwest wind around 5 mph.
7-day forecast for Capron
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Clear | 5 mph SSW | 0% |
| Tuesday | 83°F | Mostly Sunny | 5 to 10 mph SSW | 3% |
| Tuesday Night | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph WSW | 74% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph WNW | 74% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely | 0 to 5 mph NNW | 69% |
| Thursday | 78°F | Chance Rain Showers then Partly Sunny | 0 to 5 mph NE | 37% |
| Thursday Night | 58°F | Partly Cloudy | 0 mph | 14% |
| Friday | 80°F | Mostly Sunny | 0 to 5 mph S | 4% |
| Friday Night | 61°F | Mostly Clear | 0 to 5 mph SSW | 6% |
| Saturday | 82°F | Mostly Sunny | 0 to 10 mph SSW | 11% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 23% |
| Sunday | 84°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 23% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 44% |
| Monday | 83°F | Chance Rain Showers | 5 to 10 mph SSW | 43% |
Forecast source: National Weather Service (api.weather.gov) for Capron (42.399, -88.739). Updated through the day.
Growing snapshot for Capron
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
161 days
Hardiness zone
5b
More local growing data for Capron: nearby ZIP 61012 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Clinton Wwtp, Wi (11.7 mi from Capron). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.