St. Catharine, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Catharine, a community in Linn County, Missouri.
This Afternoon
70°F
Slight Chance Rain Showers
A slight chance of rain showers before 5pm. Partly sunny. High near 70, with temperatures falling to around 62 in the afternoon. South southwest wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for St. Catharine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Slight Chance Rain Showers | 17 mph SSW | 24% |
| Tonight | 48°F | Cloudy | 14 mph WSW | 11% |
| Wednesday | 55°F | Mostly Cloudy | 13 to 16 mph W | 9% |
| Wednesday Night | 41°F | Partly Cloudy | 6 to 9 mph WSW | 1% |
| Thursday | 55°F | Partly Sunny then Slight Chance Rain Showers | 7 to 12 mph W | 18% |
| Thursday Night | 41°F | Mostly Cloudy | 7 mph NW | 8% |
| Friday | 54°F | Partly Sunny | 5 to 9 mph N | 2% |
| Friday Night | 36°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 55°F | Partly Sunny | 1 to 5 mph WNW | 1% |
| Saturday Night | 36°F | Partly Cloudy | 2 mph W | 5% |
| Sunday | 62°F | Sunny | 2 to 7 mph W | 4% |
| Sunday Night | 37°F | Mostly Clear | 3 mph WSW | 1% |
| Monday | 66°F | Sunny | 3 to 12 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 6 mph W | 0% |
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 Nov 4, 2026.