Custer, MI Weather & Growing Conditions
Overnight
47°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 47, with temperatures rising to around 51 overnight. East southeast wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Rain Showers Likely | 7 mph ESE | 73% |
| Saturday | 64°F | Showers And Thunderstorms | 9 mph ESE | 82% |
| Saturday Night | 51°F | Showers And Thunderstorms Likely | 3 to 7 mph ENE | 57% |
| Sunday | 72°F | Partly Sunny | 6 to 10 mph NE | 8% |
| Sunday Night | 44°F | Mostly Cloudy | 5 to 10 mph NE | 0% |
| Monday | 65°F | Mostly Cloudy | 8 mph ENE | 1% |
| Monday Night | 41°F | Mostly Cloudy | 7 mph ENE | 1% |
| Tuesday | 67°F | Partly Sunny | 6 to 9 mph ENE | 2% |
| Tuesday Night | 43°F | Partly Cloudy | 5 to 8 mph ENE | 7% |
| Wednesday | 67°F | Partly Sunny | 6 to 9 mph ENE | 12% |
| Wednesday Night | 44°F | Mostly Cloudy | 3 to 8 mph ENE | 11% |
| Thursday | 70°F | Partly Sunny | 3 to 7 mph NE | 3% |
| Thursday Night | 45°F | Mostly Cloudy | 2 to 6 mph NE | 2% |
| Friday | 73°F | Mostly Sunny | 2 to 6 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Custer, MI
Last spring frost
May 17
First fall frost
Oct 7
Growing season
144 days
Hardiness zone
6a
Explore more for Custer, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Ludington 4 Se, Mi (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.