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.
Today
76°F
Partly Sunny
Partly sunny, with a high near 76. Northwest wind 5 to 10 mph.
7-day forecast for Lake St. Croix Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Partly Sunny | 5 to 10 mph NW | 5% |
| Tonight | 56°F | Partly Cloudy | 0 to 10 mph NNW | 5% |
| Wednesday | 77°F | Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 58°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 82°F | Sunny | 5 to 10 mph SSW | 0% |
| Thursday Night | 63°F | Mostly Clear | 5 to 10 mph SSW | 3% |
| Friday | 84°F | Sunny | 5 to 10 mph SSW | 11% |
| Friday Night | 64°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 32% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 0 to 5 mph SSW | 15% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 mph NNE | 48% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 5 mph SSW | 48% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 19% |
| Monday | 82°F | Slight Chance Showers And Thunderstorms | 5 mph ENE | 23% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 24% |
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 Aug 4, 2026.