Bronson, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bronson, a city in Branch County, Michigan.
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. East wind around 10 mph.
7-day forecast for Bronson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 10 mph E | 0% |
| Tonight | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph E | 17% |
| Saturday | 72°F | Showers And Thunderstorms | 10 mph SE | 97% |
| Saturday Night | 61°F | Showers And Thunderstorms | 5 to 10 mph S | 90% |
| Sunday | 70°F | Rain Showers Likely | 5 to 10 mph N | 66% |
| Sunday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 48% |
| Monday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 41% |
| Monday Night | 47°F | Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Tuesday | 64°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph NE | 25% |
| Tuesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Wednesday | 64°F | Slight Chance Rain Showers | 10 mph NE | 22% |
| Wednesday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Thursday | 67°F | Partly Sunny | 5 to 10 mph NE | 8% |
| Thursday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Bronson (41.872, -85.191). Updated through the day.
Growing snapshot for Bronson
Last spring frost
May 2
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
6a
More local growing data for Bronson: nearby ZIP 49028 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Coldwater St School, Mi (12.6 mi from Bronson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.