Muir, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Muir, a village in Ionia County, Michigan.
Tonight
52°F
Rain Showers Likely
Rain showers likely after 8pm. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. East northeast wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Muir
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Rain Showers Likely | 9 mph ENE | 60% |
| Saturday | 64°F | Showers And Thunderstorms | 5 to 10 mph E | 91% |
| Saturday Night | 55°F | Showers And Thunderstorms | 6 to 9 mph ENE | 83% |
| Sunday | 67°F | Rain Showers Likely | 9 to 14 mph NE | 56% |
| Sunday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 10 to 14 mph NE | 35% |
| Monday | 63°F | Mostly Cloudy | 15 mph ENE | 10% |
| Monday Night | 45°F | Mostly Cloudy | 12 to 15 mph NE | 10% |
| Tuesday | 62°F | Partly Sunny | 16 mph NE | 14% |
| Tuesday Night | 47°F | Chance Rain Showers | 12 to 15 mph NE | 30% |
| Wednesday | 63°F | Chance Rain Showers | 13 mph NE | 30% |
| Wednesday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 12 mph NE | 23% |
| Thursday | 66°F | Partly Sunny | 7 to 10 mph NE | 6% |
| Thursday Night | 48°F | Mostly Cloudy | 3 to 8 mph NNE | 5% |
| Friday | 70°F | Mostly Sunny | 3 to 8 mph NNE | 7% |
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 Sep 19, 2026.