Byron, MI Weather & Growing Conditions
Tonight
59°F
Patchy Fog then Rain Showers Likely
Patchy fog and a slight chance of rain showers before 1am, then rain showers likely and patchy fog. Mostly cloudy, with a low around 59. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Patchy Fog then Rain Showers Likely | 5 mph E | 73% |
| Sunday | 67°F | Rain Showers | 6 to 12 mph NE | 84% |
| Sunday Night | 50°F | Mostly Cloudy | 8 to 12 mph NE | 4% |
| Monday | 62°F | Mostly Cloudy | 9 to 13 mph NE | 4% |
| Monday Night | 47°F | Mostly Cloudy | 8 to 12 mph NE | 3% |
| Tuesday | 61°F | Partly Sunny | 9 to 14 mph ENE | 8% |
| Tuesday Night | 50°F | Chance Rain Showers | 13 mph ENE | 27% |
| Wednesday | 60°F | Chance Rain Showers | 13 mph ENE | 47% |
| Wednesday Night | 50°F | Chance Rain Showers | 7 to 12 mph ENE | 47% |
| Thursday | 64°F | Partly Sunny | 9 mph E | 10% |
| Thursday Night | 50°F | Mostly Cloudy | 3 to 7 mph ENE | 10% |
| Friday | 68°F | Mostly Sunny | 3 to 7 mph NE | 8% |
| Friday Night | 48°F | Partly Cloudy | 2 to 7 mph NNE | 5% |
| Saturday | 70°F | Sunny | 2 to 6 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Byron, MI
Last spring frost
May 3
First fall frost
Oct 12
Growing season
161 days
Hardiness zone
6a
Explore more for Byron, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Linden Wwtp, Mi (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.