Rockville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rockville, a city in St. Clair County, Missouri.
Overnight
47°F
Patchy Drizzle
Patchy drizzle before 2am. Cloudy, with a low around 47. Wind chill values as low as 45. West wind around 8 mph.
7-day forecast for Rockville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Drizzle | 8 mph W | 12% |
| Wednesday | 61°F | Partly Sunny | 6 to 12 mph W | 0% |
| Wednesday Night | 40°F | Clear | 3 mph W | 0% |
| Thursday | 61°F | Sunny | 2 to 7 mph W | 0% |
| Thursday Night | 43°F | Partly Cloudy | 3 mph NW | 6% |
| Friday | 57°F | Partly Sunny | 3 to 7 mph N | 0% |
| Friday Night | 36°F | Mostly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 56°F | Mostly Sunny | 2 mph N | 0% |
| Saturday Night | 35°F | Mostly Clear | 0 mph | 0% |
| Sunday | 63°F | Sunny | 0 to 3 mph NW | 0% |
| Sunday Night | 37°F | Clear | 1 mph SW | 0% |
| Monday | 68°F | Sunny | 1 to 7 mph SW | 0% |
| Monday Night | 42°F | Clear | 2 mph SW | 0% |
| Tuesday | 70°F | Sunny | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Rockville (38.072, -94.080). Updated through the day.
Growing snapshot for Rockville
Last spring frost
Apr 7
First fall frost
Oct 29
Growing season
202 days
Hardiness zone
6b
More local growing data for Rockville: nearby ZIP 64780 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Appleton City, Mo (8.9 mi from Rockville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.