Byron, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Byron, a village in Shiawassee County, Michigan.
Today
86°F
Sunny
Sunny, with a high near 86. South southwest wind around 7 mph.
7-day forecast for Byron
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 7 mph SSW | 0% |
| Tonight | 60°F | Mostly Clear | 3 to 7 mph SSW | 0% |
| Wednesday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 18% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 8 mph WSW | 76% |
| Thursday | 80°F | Showers And Thunderstorms | 2 to 6 mph WSW | 76% |
| Thursday Night | 61°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 58% |
| Friday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph SW | 23% |
| Friday Night | 62°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 to 6 mph SW | 23% |
| Saturday | 87°F | Sunny | 3 to 10 mph SW | 5% |
| Saturday Night | 65°F | Mostly Clear then Chance Rain Showers | 5 to 10 mph SW | 28% |
| Sunday | 88°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 to 14 mph SW | 28% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 7 to 13 mph WSW | 49% |
| Monday | 86°F | Chance Rain Showers | 6 to 9 mph W | 49% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 8 mph W | 46% |
Forecast source: National Weather Service (api.weather.gov) for Byron (42.821, -83.950). Updated through the day.
Growing snapshot for Byron
Last spring frost
May 3
First fall frost
Oct 12
Growing season
161 days
Hardiness zone
6a
More local growing data for Byron: nearby ZIP 48418 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Bancroft
Corunna
Durand
Henderson
Laingsburg
Lake Victoria
Lennon
Middletown
Morrice
New Lothrop
Owosso
Perry
Shaftsburg
Vernon
Climate data from the nearest NOAA station, Linden Wwtp, Mi (8.5 mi from Byron). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.