St. James, MI Weather & Growing Conditions
Today
65°F
Rain Showers
Rain showers. Mostly cloudy. High near 65, with temperatures falling to around 60 in the afternoon. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Rain Showers | 10 mph S | 89% |
| Tonight | 42°F | Rain Showers Likely | 10 mph SW | 59% |
| Thursday | 54°F | Rain Showers | 10 to 15 mph W | 92% |
| Thursday Night | 33°F | Rain Showers | 15 mph N | 92% |
| Friday | 47°F | Rain And Snow Showers Likely | 15 mph N | 71% |
| Friday Night | 32°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph N | 22% |
| Saturday | 50°F | Mostly Sunny | 5 to 10 mph NW | 0% |
| Saturday Night | 35°F | Mostly Clear | 5 to 10 mph W | 1% |
| Sunday | 53°F | Mostly Sunny then Slight Chance Rain Showers | 10 to 15 mph W | 15% |
| Sunday Night | 36°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph NW | 15% |
| Monday | 55°F | Mostly Sunny | 5 to 15 mph W | 4% |
| Monday Night | 38°F | Partly Cloudy | 10 to 15 mph W | 0% |
| Tuesday | 52°F | Mostly Sunny | 10 to 15 mph NW | 6% |
| Tuesday Night | 35°F | Mostly Cloudy | 5 to 10 mph NW | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. James, MI
Last spring frost
May 11
First fall frost
Oct 19
Growing season
159 days
Hardiness zone
6a
Explore more for St. James, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, St James 4Ssw Beaver, Mi (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.