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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

WhenTempForecastWindPrecip
Overnight 73°F Partly Cloudy 7 mph S 2%
Saturday 92°F Partly Sunny 7 to 10 mph SW 2%
Saturday Night 66°F Chance Showers And Thunderstorms 3 to 7 mph W 59%
Sunday 79°F Chance Showers And Thunderstorms 3 to 10 mph NNW 47%
Sunday Night 60°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 8 to 12 mph NNE 63%
Monday 68°F Showers And Thunderstorms Likely 12 mph NE 62%
Monday Night 54°F Chance Rain Showers 8 to 12 mph NNE 43%
Tuesday 64°F Mostly Cloudy 10 mph NNE 10%
Tuesday Night 49°F Mostly Cloudy 5 to 9 mph NE 6%
Wednesday 68°F Mostly Sunny 7 mph NE 1%
Wednesday Night 52°F Partly Cloudy 2 to 6 mph ENE 3%
Thursday 70°F Partly Sunny 2 to 6 mph ENE 6%
Thursday Night 55°F Mostly Cloudy 5 mph ENE 8%
Friday 71°F Mostly Sunny 3 to 7 mph E 9%

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

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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.