St. Robert, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Robert, a city in Pulaski County, Missouri.
This Afternoon
97°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny. High near 97, with temperatures falling to around 94 in the afternoon. Heat index values as high as 100. South wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for St. Robert
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Slight Chance Showers And Thunderstorms | 5 mph S | 20% |
| Tonight | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 6 mph S | 18% |
| Saturday | 99°F | Sunny | 6 to 10 mph SW | 1% |
| Saturday Night | 73°F | Partly Cloudy | 7 mph SW | 0% |
| Sunday | 96°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 mph W | 19% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph N | 69% |
| Monday | 83°F | Showers And Thunderstorms Likely | 3 to 10 mph N | 69% |
| Monday Night | 60°F | Showers And Thunderstorms Likely | 6 to 10 mph N | 60% |
| Tuesday | 75°F | Chance Rain Showers then Partly Sunny | 7 to 10 mph N | 31% |
| Tuesday Night | 54°F | Partly Cloudy | 3 to 10 mph N | 6% |
| Wednesday | 77°F | Mostly Sunny | 3 to 8 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 8 mph NE | 1% |
| Thursday | 79°F | Mostly Sunny | 2 to 7 mph NE | 4% |
| Thursday Night | 56°F | Partly Cloudy | 2 to 7 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for St. Robert (37.825, -92.152). Updated through the day.
Growing snapshot for St. Robert
Last spring frost
Apr 15
First fall frost
Oct 21
Growing season
185 days
Hardiness zone
6b
More local growing data for St. Robert: nearby ZIP 65584 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Waynesville 2 W, Mo (5.6 mi from St. Robert). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.