St. Thomas, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Thomas, a town in Cole County, Missouri.
This Afternoon
71°F
Light Rain
Rain and a slight chance of thunderstorms before 5pm, then a slight chance of thunderstorms and a slight chance of rain. Cloudy. High near 71, with temperatures falling to around 65 in the afternoon. South wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
7-day forecast for St. Thomas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Light Rain | 9 to 15 mph S | 81% |
| Tonight | 50°F | Cloudy then Chance Rain Showers | 8 mph SW | 13% |
| Wednesday | 62°F | Mostly Cloudy | 6 to 10 mph W | 2% |
| Wednesday Night | 45°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 67°F | Sunny then Slight Chance Light Rain | 7 mph W | 24% |
| Thursday Night | 44°F | Chance Light Rain then Mostly Cloudy | 3 mph NW | 36% |
| Friday | 60°F | Partly Sunny | 6 mph NW | 2% |
| Friday Night | 42°F | Mostly Cloudy | 3 mph N | 0% |
| Saturday | 60°F | Partly Sunny | 2 mph NW | 1% |
| Saturday Night | 39°F | Partly Cloudy | 2 mph W | 3% |
| Sunday | 61°F | Mostly Sunny | 2 to 6 mph W | 6% |
| Sunday Night | 38°F | Mostly Clear | 3 mph W | 5% |
| Monday | 66°F | Sunny | 5 mph SW | 3% |
| Monday Night | 41°F | Mostly Clear | 2 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov) for St. Thomas (38.367, -92.216). Updated through the day.
Growing snapshot for St. Thomas
Last spring frost
Apr 8
First fall frost
Oct 31
Growing season
205 days
Hardiness zone
6b
More local growing data for St. Thomas: nearby ZIP 65076 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jefferson City Wtp, Mo (14.2 mi from St. Thomas). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.