St. Martins, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Martins, a city in Cole County, Missouri.
Overnight
75°F
Mostly Clear
Mostly clear, with a low around 75. South wind around 5 mph.
7-day forecast for St. Martins
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 75°F | Mostly Clear | 5 mph S | 1% |
| Saturday | 99°F | Mostly Sunny | 5 to 8 mph SW | 1% |
| Saturday Night | 71°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SW | 14% |
| Sunday | 90°F | Chance Rain Showers | 1 to 5 mph NW | 47% |
| Sunday Night | 67°F | Showers And Thunderstorms | 5 mph N | 85% |
| Monday | 77°F | Showers And Thunderstorms | 3 to 7 mph NE | 85% |
| Monday Night | 59°F | Chance Rain Showers | 3 to 7 mph N | 33% |
| Tuesday | 71°F | Partly Sunny | 7 mph N | 14% |
| Tuesday Night | 53°F | Partly Cloudy | 2 to 6 mph NE | 2% |
| Wednesday | 75°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 3 mph NE | 1% |
| Thursday | 77°F | Mostly Sunny | 1 to 5 mph NE | 5% |
| Thursday Night | 59°F | Partly Cloudy | 3 mph NE | 8% |
| Friday | 77°F | Slight Chance Rain Showers | 1 to 5 mph E | 18% |
Forecast source: National Weather Service (api.weather.gov) for St. Martins (38.598, -92.334). Updated through the day.
Growing snapshot for St. Martins
Last spring frost
Apr 8
First fall frost
Oct 31
Growing season
205 days
Hardiness zone
6b
More local growing data for St. Martins: nearby ZIP 65109 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jefferson City Wtp, Mo (5.2 mi from St. Martins). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.