Constantine, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Constantine, a village in St. Joseph County, Michigan.
Tonight
63°F
Mostly Cloudy then Chance Rain Showers
A chance of rain showers after 4am. Mostly cloudy, with a low around 63. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
7-day forecast for Constantine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Mostly Cloudy then Chance Rain Showers | 15 mph S | 42% |
| Wednesday | 69°F | Rain Showers | 15 to 20 mph S | 70% |
| Wednesday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph SW | 40% |
| Thursday | 59°F | Mostly Cloudy | 10 to 15 mph SW | 14% |
| Thursday Night | 44°F | Slight Chance Rain Showers | 5 to 10 mph W | 22% |
| Friday | 54°F | Chance Rain Showers | 5 to 10 mph NW | 29% |
| Friday Night | 36°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 17% |
| Saturday | 51°F | Partly Sunny | 5 to 10 mph NW | 13% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 15 mph W | 19% |
| Sunday Night | 34°F | Slight Chance Rain Showers | 5 to 10 mph W | 19% |
| Monday | 58°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph W | 15% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph SW | 5% |
| Tuesday | 61°F | Mostly Sunny | 5 to 15 mph W | 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 Nov 4, 2026.