Muir, MI Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 to 10 mph SSW | 0% |
| Tonight | 61°F | Mostly Clear | 3 to 8 mph SW | 0% |
| Wednesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 12 mph SW | 48% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 10 mph W | 82% |
| Thursday | 80°F | Showers And Thunderstorms | 6 mph W | 82% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 45% |
| Friday | 84°F | Mostly Sunny | 2 to 6 mph SW | 10% |
| Friday Night | 60°F | Mostly Clear | 6 mph WSW | 10% |
| Saturday | 86°F | Sunny | 5 to 14 mph SW | 4% |
| Saturday Night | 65°F | Chance Rain Showers | 6 to 13 mph SW | 29% |
| Sunday | 87°F | Chance Rain Showers | 9 to 17 mph SW | 29% |
| Sunday Night | 65°F | Chance Rain Showers | 8 to 16 mph WSW | 51% |
| Monday | 85°F | Chance Rain Showers | 8 to 12 mph W | 51% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 7 to 12 mph W | 50% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Muir, MI
Last spring frost
May 3
First fall frost
Oct 12
Growing season
161 days
Hardiness zone
6a
Explore more for Muir, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Ionia 2Ssw, Mi (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.