St. Robert, MO Weather & Growing Conditions
This Afternoon
57°F
Mostly Cloudy
Mostly cloudy. High near 57, with temperatures falling to around 55 in the afternoon. West wind 7 to 10 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Mostly Cloudy | 7 to 10 mph W | 0% |
| Tonight | 40°F | Mostly Clear | 6 mph SW | 0% |
| Thursday | 64°F | Sunny | 5 to 9 mph W | 1% |
| Thursday Night | 40°F | Slight Chance Rain Showers then Slight Chance Drizzle | 6 mph NW | 21% |
| Friday | 56°F | Slight Chance Drizzle then Partly Sunny | 5 to 9 mph N | 16% |
| Friday Night | 31°F | Partly Cloudy then Widespread Frost | 0 to 6 mph N | 0% |
| Saturday | 55°F | Widespread Frost then Mostly Sunny | 0 to 3 mph N | 0% |
| Saturday Night | 30°F | Mostly Clear | 2 mph NW | 0% |
| Sunday | 62°F | Sunny | 1 to 5 mph W | 0% |
| Sunday Night | 32°F | Mostly Clear | 2 mph W | 0% |
| Monday | 68°F | Sunny | 1 to 5 mph SW | 0% |
| Monday Night | 36°F | Clear | 5 mph SW | 1% |
| Tuesday | 69°F | Sunny | 5 mph W | 2% |
| Tuesday Night | 39°F | Mostly Clear | 2 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Robert, MO
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
193 days
Hardiness zone
6b
Explore more for St. Robert, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Ft Leonard Wood, Mo (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.