St. Joseph, MN Weather & Growing Conditions
Today
74°F
Partly Sunny
Partly sunny, with a high near 74. Northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Partly Sunny | 5 to 10 mph NW | 0% |
| Tonight | 53°F | Mostly Clear | 0 to 10 mph W | 0% |
| Wednesday | 78°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 5 to 10 mph SW | 1% |
| Thursday | 84°F | Sunny | 5 to 15 mph SSW | 3% |
| Thursday Night | 63°F | Mostly Clear | 5 to 10 mph SSW | 2% |
| Friday | 86°F | Sunny | 5 to 10 mph SW | 7% |
| Friday Night | 61°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 20% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph SSW | 20% |
| Saturday Night | 62°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph NNE | 42% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph N | 40% |
| Sunday Night | 62°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 16% |
| Monday | 83°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph NNE | 16% |
| Monday Night | 62°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Joseph, MN
Last spring frost
May 3
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
4b
Explore more for St. Joseph, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Collegeville St John's, Mn (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.