Marine on St. Croix, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marine on St. Croix, a city in Washington County, Minnesota.
This Afternoon
59°F
Light Rain
Rain and patchy fog. Cloudy. High near 59, with temperatures falling to around 56 in the afternoon. North wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Marine on St. Croix
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Light Rain | 5 to 10 mph N | 100% |
| Tonight | 51°F | Rain | 5 mph NNE | 95% |
| Wednesday | 57°F | Light Rain | 5 to 10 mph NE | 77% |
| Wednesday Night | 44°F | Light Rain Likely | 10 mph NNW | 73% |
| Thursday | 48°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 45% |
| Thursday Night | 34°F | Mostly Cloudy | 5 to 10 mph NNE | 2% |
| Friday | 46°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 5 mph WSW | 8% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph W | 10% |
| Sunday Night | 36°F | Partly Cloudy | 0 to 5 mph SW | 1% |
| Monday | 56°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Marine on St. Croix (45.191, -92.778). Updated through the day.
Growing snapshot for Marine on St. Croix
Last spring frost
May 3
First fall frost
Oct 5
Growing season
154 days
Hardiness zone
4b
More local growing data for Marine on St. Croix: nearby ZIP 55047 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
Newport
Oak Park Heights
Oakdale
Pine Springs
Scandia
St. Marys Point
St. Paul Park
Stillwater
Willernie
Woodbury
Climate data from the nearest NOAA station, Forest Lake 5Ne, Mn (9.8 mi from Marine on St. Croix). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.