St. Marys Point, MN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for St. Marys Point, a city in Washington County, Minnesota.

This Afternoon

64°F

Slight Chance Rain Showers

A chance of drizzle before 4pm, then a slight chance of rain showers between 4pm and 5pm. Cloudy, with a high near 64. Northeast wind around 10 mph. Chance of precipitation is 30%.

7-day forecast for St. Marys Point

When	Temp	Forecast	Wind	Precip
This Afternoon	64°F	Slight Chance Rain Showers	10 mph NE	27%
Tonight	51°F	Mostly Cloudy	5 to 10 mph NNE	12%
Sunday	69°F	Partly Sunny	5 to 10 mph NE	1%
Sunday Night	48°F	Mostly Cloudy	5 to 10 mph NE	0%
Monday	63°F	Mostly Cloudy	5 mph ENE	4%
Monday Night	43°F	Mostly Cloudy	0 to 5 mph ENE	3%
Tuesday	64°F	Sunny	5 mph E	2%
Tuesday Night	42°F	Mostly Clear	0 to 5 mph ESE	1%
Wednesday	67°F	Sunny	0 to 5 mph ESE	0%
Wednesday Night	48°F	Partly Cloudy	0 to 5 mph SE	7%
Thursday	68°F	Slight Chance Rain Showers	0 to 5 mph SE	21%
Thursday Night	52°F	Slight Chance Rain Showers then Mostly Cloudy	0 to 5 mph SE	18%
Friday	72°F	Partly Sunny	0 to 5 mph SE	7%
Friday Night	54°F	Partly Cloudy	0 to 5 mph SE	6%

Forecast source: National Weather Service (api.weather.gov) for St. Marys Point (44.911, -92.770). Updated through the day.

Growing snapshot for St. Marys Point

Last spring frost

Apr 22

First fall frost

Oct 19

Growing season

178 days

Hardiness zone

More local growing data for St. Marys Point: nearby ZIP 55043 weather · frost dates · planting calendar · Minnesota frost dates

Nearby towns & communities

Afton Bayport Birchwood Village Cottage Grove Dellwood Grant Hugo Lake Elmo Lake St. Croix Beach Lakeland Lakeland Shores Mahtomedi Marine on St. Croix Newport Oak Park Heights Oakdale Pine Springs Scandia St. Paul Park Stillwater Willernie Woodbury

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Climate data from the nearest NOAA station, Stillwater 1 Se, Mn (7.1 mi from St. Marys Point). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.