Brethren, MI Weather & Growing Conditions
Tonight
60°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy. Low around 60, with temperatures rising to around 62 overnight. Southeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Slight Chance Rain Showers | 5 mph SE | 24% |
| Wednesday | 69°F | Rain Showers | 10 mph S | 90% |
| Wednesday Night | 47°F | Rain Showers Likely | 5 to 10 mph SW | 72% |
| Thursday | 54°F | Rain Showers | 5 mph SW | 94% |
| Thursday Night | 38°F | Rain Showers | 0 to 5 mph NW | 94% |
| Friday | 49°F | Chance Rain Showers | 5 mph N | 40% |
| Friday Night | 32°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph N | 25% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph NW | 7% |
| Saturday Night | 31°F | Partly Cloudy | 0 mph | 7% |
| Sunday | 54°F | Slight Chance Rain Showers | 0 to 5 mph W | 21% |
| Sunday Night | 34°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph NW | 21% |
| Monday | 57°F | Mostly Sunny | 0 to 10 mph SW | 12% |
| Monday Night | 38°F | Partly Cloudy | 5 mph W | 9% |
| Tuesday | 57°F | Mostly Sunny | 5 to 10 mph NW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brethren, MI
Last spring frost
May 28
First fall frost
Sep 25
Growing season
119 days
Hardiness zone
5b
Explore more for Brethren, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Wellston 1N, Mi (4.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.