St. Catharine, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Catharine, a community in Linn County, Missouri.
Today
89°F
Sunny
Sunny, with a high near 89. South wind around 7 mph.
7-day forecast for St. Catharine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 7 mph S | 6% |
| Tonight | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph SE | 26% |
| Wednesday | 83°F | Showers And Thunderstorms Likely | 5 to 8 mph SE | 67% |
| Wednesday Night | 65°F | Showers And Thunderstorms Likely | 5 to 8 mph NNE | 85% |
| Thursday | 83°F | Showers And Thunderstorms then Mostly Sunny | 6 mph ENE | 85% |
| Thursday Night | 65°F | Mostly Clear | 5 mph ESE | 5% |
| Friday | 86°F | Mostly Sunny | 2 to 7 mph SSE | 13% |
| Friday Night | 68°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph SSE | 16% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms then Sunny | 3 to 12 mph SSW | 15% |
| Saturday Night | 72°F | Mostly Clear | 7 to 10 mph S | 5% |
| Sunday | 91°F | Sunny | 10 to 16 mph SSW | 5% |
| Sunday Night | 73°F | Mostly Clear | 8 to 15 mph S | 5% |
| Monday | 91°F | Mostly Sunny | 10 to 16 mph SSW | 5% |
| Monday Night | 73°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 9 to 15 mph SSW | 15% |
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 Aug 4, 2026.