Muir, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Muir, a village in Ionia County, Michigan.
Today
86°F
Sunny
Sunny, with a high near 86. South southwest wind 3 to 9 mph, with gusts as high as 18 mph.
7-day forecast for Muir
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 3 to 9 mph SSW | 0% |
| Tonight | 60°F | Partly Cloudy | 3 to 9 mph SW | 0% |
| Wednesday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 46% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 9 mph W | 82% |
| Thursday | 80°F | Showers And Thunderstorms | 6 mph W | 82% |
| Thursday Night | 58°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph S | 45% |
| Friday | 84°F | Mostly Sunny | 1 to 5 mph SW | 10% |
| Friday Night | 60°F | Mostly Clear | 5 mph WSW | 10% |
| Saturday | 86°F | Sunny | 3 to 13 mph SW | 4% |
| Saturday Night | 65°F | Chance Rain Showers | 5 to 12 mph SW | 28% |
| Sunday | 87°F | Chance Rain Showers | 8 to 16 mph SW | 28% |
| Sunday Night | 65°F | Chance Rain Showers | 8 to 15 mph WSW | 50% |
| Monday | 85°F | Chance Rain Showers | 10 mph W | 50% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 7 to 10 mph WSW | 50% |
Forecast source: National Weather Service (api.weather.gov) for Muir (42.998, -84.935). Updated through the day.
Growing snapshot for Muir
Last spring frost
May 3
First fall frost
Oct 12
Growing season
161 days
Hardiness zone
6a
More local growing data for Muir: nearby ZIP 48851 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ionia 2Ssw, Mi (7.2 mi from Muir). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.