Muir, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Muir, a village in Ionia County, Michigan.
Tonight
61°F
Partly Cloudy
Partly cloudy. Low around 61, with temperatures rising to around 63 overnight. South southeast wind around 13 mph, with gusts as high as 24 mph.
7-day forecast for Muir
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Partly Cloudy | 13 mph SSE | 11% |
| Wednesday | 71°F | Rain Showers | 13 to 16 mph S | 84% |
| Wednesday Night | 49°F | Rain Showers Likely | 12 mph SW | 56% |
| Thursday | 58°F | Chance Rain Showers | 10 to 15 mph SW | 45% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 9 mph W | 53% |
| Friday | 52°F | Rain Showers Likely | 5 to 12 mph NNW | 55% |
| Friday Night | 34°F | Chance Rain Showers then Mostly Cloudy | 6 to 9 mph N | 41% |
| Saturday | 51°F | Mostly Sunny | 5 to 8 mph NW | 8% |
| Saturday Night | 31°F | Partly Cloudy | 2 to 6 mph WSW | 4% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Rain Showers | 3 to 12 mph W | 21% |
| Sunday Night | 34°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 9 mph WNW | 21% |
| Monday | 59°F | Mostly Sunny | 6 to 13 mph W | 8% |
| Monday Night | 38°F | Partly Cloudy | 9 mph WSW | 6% |
| Tuesday | 60°F | Mostly Sunny | 8 to 14 mph W | 2% |
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 Nov 4, 2026.