Muir, MI Weather & Growing Conditions
This Afternoon
63°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 63, with temperatures falling to around 61 in the afternoon. East wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Chance Showers And Thunderstorms | 9 mph E | 36% |
| Tonight | 57°F | Showers And Thunderstorms | 5 to 9 mph ENE | 77% |
| Sunday | 69°F | Chance Rain Showers | 9 to 14 mph NE | 49% |
| Sunday Night | 49°F | Mostly Cloudy | 13 mph NE | 1% |
| Monday | 63°F | Mostly Cloudy | 13 to 16 mph ENE | 3% |
| Monday Night | 46°F | Mostly Cloudy | 12 to 15 mph NE | 4% |
| Tuesday | 62°F | Partly Sunny | 12 to 16 mph NE | 4% |
| Tuesday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 16 mph ENE | 18% |
| Wednesday | 63°F | Chance Rain Showers | 16 mph ENE | 38% |
| Wednesday Night | 48°F | Chance Rain Showers | 9 to 14 mph ENE | 38% |
| Thursday | 66°F | Partly Sunny | 10 mph ENE | 9% |
| Thursday Night | 49°F | Mostly Cloudy | 5 to 9 mph ENE | 7% |
| Friday | 70°F | Partly Sunny | 5 to 9 mph NE | 5% |
| Friday Night | 47°F | Partly Cloudy | 3 to 7 mph NE | 5% |
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 Sep 20, 2026.