St. Catharine, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Catharine, a community in Linn County, Missouri.
Overnight
73°F
Partly Cloudy
Partly cloudy, with a low around 73. South wind around 7 mph.
7-day forecast for St. Catharine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Partly Cloudy | 7 mph S | 1% |
| Saturday | 91°F | Partly Sunny | 7 to 10 mph SW | 2% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 3 to 7 mph W | 59% |
| Sunday | 77°F | Chance Showers And Thunderstorms | 3 to 12 mph NNE | 47% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 12 mph NE | 73% |
| Monday | 66°F | Showers And Thunderstorms Likely | 13 mph NE | 73% |
| Monday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 8 to 13 mph NE | 27% |
| Tuesday | 63°F | Mostly Cloudy | 12 mph NE | 7% |
| Tuesday Night | 48°F | Mostly Cloudy | 3 to 9 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 7 mph NE | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 2 to 6 mph ENE | 2% |
| Thursday | 71°F | Partly Sunny then Slight Chance Rain Showers | 2 to 6 mph ENE | 15% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 2 to 6 mph ENE | 15% |
| Friday | 73°F | Slight Chance Rain Showers | 3 to 7 mph E | 19% |
Forecast source: National Weather Service (api.weather.gov) for St. Catharine (39.798, -92.996). Updated through the day.
Growing snapshot for St. Catharine
Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
192 days
Hardiness zone
6a
More local growing data for St. Catharine: nearby ZIP 64628 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Brookfield, Mo (2.1 mi from St. Catharine). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.