St. Croix Falls, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Croix Falls, a city in Polk County, Wisconsin.
Overnight
52°F
Light Rain
Rain before 4am, then rain and patchy fog. Mostly cloudy, with a low around 52. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for St. Croix Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Light Rain | 5 mph E | 83% |
| Wednesday | 57°F | Light Rain | 5 mph NNE | 89% |
| Wednesday Night | 43°F | Drizzle | 5 to 15 mph NNW | 89% |
| Thursday | 47°F | Slight Chance Drizzle then Mostly Cloudy | 10 to 15 mph N | 16% |
| Thursday Night | 31°F | Mostly Cloudy | 0 to 10 mph NNE | 0% |
| Friday | 45°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 27°F | Mostly Clear | 0 mph | 0% |
| Saturday | 47°F | Sunny | 0 to 5 mph SW | 2% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph WSW | 6% |
| Sunday | 52°F | Sunny | 5 mph W | 5% |
| Sunday Night | 34°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 56°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 36°F | Mostly Clear | 0 to 5 mph WNW | 1% |
| Tuesday | 53°F | Sunny | 0 to 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for St. Croix Falls (45.411, -92.625). Updated through the day.
Growing snapshot for St. Croix Falls
Last spring frost
May 4
First fall frost
Oct 8
Growing season
156 days
Hardiness zone
4b
More local growing data for St. Croix Falls: nearby ZIP 54009 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Amery
Balsam Lake
Centuria
Clear Lake
Dresser
Frederic
Luck
Milltown
Osceola
Star Prairie
Turtle Lake
Climate data from the nearest NOAA station, St Croix Falls, Wi (5.3 mi from St. Croix Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.