Cassopolis, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cassopolis, a village in Cass County, Michigan.
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. South wind around 15 mph, with gusts as high as 35 mph.
7-day forecast for Cassopolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 15 mph S | 3% |
| Tonight | 62°F | Partly Cloudy then Chance Rain Showers | 15 mph S | 45% |
| Wednesday | 69°F | Rain Showers Likely | 15 mph S | 68% |
| Wednesday Night | 49°F | Mostly Cloudy | 10 to 15 mph SW | 10% |
| Thursday | 58°F | Mostly Cloudy | 10 to 15 mph SW | 14% |
| Thursday Night | 44°F | Chance Rain Showers | 5 to 10 mph W | 33% |
| Friday | 54°F | Chance Rain Showers | 5 to 10 mph NW | 28% |
| Friday Night | 35°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 17% |
| Saturday | 51°F | Mostly Sunny | 0 to 10 mph NW | 14% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 3% |
| Sunday | 54°F | Slight Chance Rain Showers | 5 to 10 mph W | 20% |
| Sunday Night | 34°F | Slight Chance Rain Showers | 5 mph W | 20% |
| Monday | 58°F | Slight Chance Rain Showers then Sunny | 5 to 10 mph W | 16% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph SW | 6% |
Forecast source: National Weather Service (api.weather.gov) for Cassopolis (41.912, -86.008). Updated through the day.
Growing snapshot for Cassopolis
Last spring frost
May 4
First fall frost
Oct 11
Growing season
158 days
Hardiness zone
6a
More local growing data for Cassopolis: nearby ZIP 49031 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dowagiac 1 W, Mi (9.8 mi from Cassopolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.