St. Joseph, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Joseph, a city in Berrien County, Michigan.
Tonight
60°F
Mostly Cloudy then Rain Showers Likely
Rain showers likely after 2am. Mostly cloudy, with a low around 60. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
7-day forecast for St. Joseph
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Mostly Cloudy then Rain Showers Likely | 15 mph S | 60% |
| Wednesday | 67°F | Rain Showers | 15 mph S | 76% |
| Wednesday Night | 48°F | Mostly Cloudy | 10 to 15 mph SW | 34% |
| Thursday | 57°F | Chance Rain Showers | 10 to 15 mph SW | 25% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 10 mph W | 50% |
| Friday | 54°F | Chance Rain Showers | 10 to 15 mph N | 47% |
| Friday Night | 38°F | Chance Rain Showers | 5 to 15 mph N | 47% |
| Saturday | 51°F | Partly Sunny | 5 to 10 mph NW | 14% |
| Saturday Night | 37°F | Partly Cloudy | 5 mph W | 5% |
| Sunday | 54°F | Slight Chance Rain Showers | 5 to 10 mph W | 21% |
| Sunday Night | 39°F | Slight Chance Rain Showers | 10 mph NW | 21% |
| Monday | 57°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph W | 17% |
| Monday Night | 42°F | Partly Cloudy | 10 mph W | 9% |
| Tuesday | 57°F | Mostly Sunny | 10 mph W | 5% |
Forecast source: National Weather Service (api.weather.gov) for St. Joseph (42.100, -86.489). Updated through the day.
Growing snapshot for St. Joseph
Last spring frost
May 5
First fall frost
Oct 15
Growing season
161 days
Hardiness zone
6b
More local growing data for St. Joseph: nearby ZIP 49085 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Baroda
Benton Harbor
Benton Heights
Berrien Springs
Bridgman
Buchanan
Coloma
Eau Claire
Fair Plain
Galien
Grand Beach
Lake Michigan Beach
Michiana
Millburg
New Buffalo
New Troy
Niles
Paw Paw Lake
Shoreham
Shorewood-Tower Hills-Harbert
Stevensville
Three Oaks
Watervliet
Climate data from the nearest NOAA station, Benton Harbor Ap, Mi (5.2 mi from St. Joseph). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.