Constantine, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Constantine, a village in St. Joseph County, Michigan.
Today
72°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 72. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Constantine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Showers And Thunderstorms | 5 to 10 mph SE | 92% |
| Tonight | 63°F | Showers And Thunderstorms | 5 mph SE | 87% |
| Sunday | 70°F | Showers And Thunderstorms | 5 to 15 mph NW | 76% |
| Sunday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 35% |
| Monday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 18% |
| Monday Night | 47°F | Mostly Cloudy | 10 to 15 mph NE | 14% |
| Tuesday | 64°F | Partly Sunny then Slight Chance Rain Showers | 15 mph NE | 15% |
| Tuesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 32% |
| Wednesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Wednesday Night | 50°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 15 mph NE | 27% |
| Thursday | 67°F | Partly Sunny | 5 to 10 mph NE | 5% |
| Thursday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 5% |
| Friday | 71°F | Mostly Sunny | 5 to 10 mph NE | 3% |
| Friday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Constantine (41.838, -85.665). Updated through the day.
Growing snapshot for Constantine
Last spring frost
Apr 30
First fall frost
Oct 17
Growing season
170 days
Hardiness zone
6a
More local growing data for Constantine: nearby ZIP 49042 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Three Rivers, Mi (5.1 mi from Constantine). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.