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.
Today
96°F
Sunny
Sunny, with a high near 96. West southwest wind 3 to 7 mph.
7-day forecast for Cave-In-Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 96°F | Sunny | 3 to 7 mph WSW | 2% |
| Tonight | 71°F | Mostly Clear | 3 mph SSW | 1% |
| Sunday | 95°F | Mostly Sunny | 3 to 7 mph SW | 2% |
| Sunday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 mph N | 15% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph NE | 24% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph NNE | 46% |
| Tuesday | 79°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 8 mph NNE | 37% |
| Tuesday Night | 58°F | Partly Cloudy | 3 to 8 mph N | 7% |
| Wednesday | 76°F | Mostly Sunny | 7 mph N | 5% |
| Wednesday Night | 56°F | Partly Cloudy | 2 to 6 mph N | 5% |
| Thursday | 77°F | Mostly Sunny | 2 to 6 mph N | 1% |
| Thursday Night | 57°F | Partly Cloudy | 1 to 5 mph NNE | 1% |
| Friday | 78°F | Partly Sunny | 1 to 6 mph N | 4% |
| Friday Night | 57°F | Partly Cloudy | 5 mph NNE | 4% |
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 Sep 19, 2026.