Lake St. Croix Beach, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake St. Croix Beach, a city in Washington County, Minnesota.
This Afternoon
60°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 60. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Lake St. Croix Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Showers And Thunderstorms | 15 mph E | 92% |
| Tonight | 54°F | Showers And Thunderstorms | 10 to 15 mph E | 90% |
| Saturday | 64°F | Rain Showers Likely then Drizzle Likely | 10 mph ENE | 73% |
| Saturday Night | 53°F | Slight Chance Drizzle then Mostly Cloudy | 5 to 10 mph NNE | 15% |
| Sunday | 69°F | Partly Sunny | 10 mph NE | 1% |
| Sunday Night | 47°F | Mostly Cloudy | 5 to 10 mph ENE | 2% |
| Monday | 64°F | Mostly Cloudy | 5 to 10 mph E | 7% |
| Monday Night | 43°F | Mostly Cloudy | 0 to 5 mph ENE | 6% |
| Tuesday | 64°F | Mostly Sunny | 0 to 5 mph E | 3% |
| Tuesday Night | 43°F | Partly Cloudy | 0 to 5 mph ESE | 1% |
| Wednesday | 67°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 5 mph ENE | 8% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph SSE | 12% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 10% |
Forecast source: National Weather Service (api.weather.gov) for Lake St. Croix Beach (44.924, -92.766). Updated through the day.
Growing snapshot for Lake St. Croix Beach
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
178 days
Hardiness zone
5a
More local growing data for Lake St. Croix Beach: 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
Lakeland
Lakeland Shores
Mahtomedi
Marine on St. Croix
Newport
Oak Park Heights
Oakdale
Pine Springs
Scandia
St. Marys Point
St. Paul Park
Stillwater
Willernie
Woodbury
Climate data from the nearest NOAA station, Stillwater 1 Se, Mn (7.1 mi from Lake St. Croix Beach). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.