St. Rosa, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Rosa, a city in Stearns County, Minnesota.
Today
72°F
Patchy Smoke then Mostly Sunny
Patchy smoke before 11am. Mostly sunny, with a high near 72. Northwest wind around 10 mph.
7-day forecast for St. Rosa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Patchy Smoke then Mostly Sunny | 10 mph NW | 0% |
| Tonight | 52°F | Mostly Clear | 5 to 10 mph WSW | 0% |
| Wednesday | 77°F | Sunny | 5 to 10 mph SW | 0% |
| Wednesday Night | 57°F | Partly Cloudy | 5 to 10 mph SW | 2% |
| Thursday | 83°F | Sunny | 10 to 15 mph SSW | 2% |
| Thursday Night | 62°F | Mostly Clear | 10 to 15 mph SSW | 5% |
| Friday | 85°F | Sunny | 5 to 10 mph SW | 6% |
| Friday Night | 60°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 17% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph SSW | 15% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 40% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 5 to 10 mph WNW | 34% |
| Sunday Night | 61°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph NE | 17% |
| Monday | 82°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 17% |
| Monday Night | 60°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 18% |
Forecast source: National Weather Service (api.weather.gov) for St. Rosa (45.727, -94.714). Updated through the day.
Growing snapshot for St. Rosa
Last spring frost
May 4
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
4b
More local growing data for St. Rosa: nearby ZIP 56331 weather · frost dates · planting calendar · Minnesota frost dates
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Climate data from the nearest NOAA station, Melrose, Mn (6.3 mi from St. Rosa). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.