Cave-In-Rock, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cave-In-Rock, a village in Hardin County, Illinois.
Overnight
57°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 57, with temperatures rising to around 60 overnight. South wind around 8 mph. Chance of precipitation is 30%.
7-day forecast for Cave-In-Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Chance Rain Showers | 8 mph S | 34% |
| Wednesday | 66°F | Partly Sunny | 5 to 9 mph WSW | 13% |
| Wednesday Night | 44°F | Partly Cloudy | 5 mph WSW | 0% |
| Thursday | 68°F | Sunny | 2 to 7 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 2 mph WNW | 0% |
| Friday | 61°F | Partly Sunny | 2 to 8 mph NNW | 0% |
| Friday Night | 36°F | Partly Cloudy | 2 to 7 mph NNW | 0% |
| Saturday | 56°F | Mostly Sunny | 2 to 6 mph N | 0% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph NNW | 0% |
| Sunday | 59°F | Sunny | 0 to 6 mph NW | 0% |
| Sunday Night | 33°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 64°F | Sunny | 0 to 5 mph WSW | 0% |
| Monday Night | 36°F | Clear | 2 mph SW | 1% |
| Tuesday | 68°F | Sunny | 1 to 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Cave-In-Rock (37.471, -88.166). Updated through the day.
Growing snapshot for Cave-In-Rock
Last spring frost
Apr 19
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
7a
More local growing data for Cave-In-Rock: nearby ZIP 62919 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rosiclare 5Nw, Il (15.4 mi from Cave-In-Rock). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.