Custer, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Custer, a village in Mason County, Michigan.
Tonight
48°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 48, with temperatures rising to around 51 overnight. East wind 3 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Custer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Rain Showers Likely | 3 to 8 mph E | 67% |
| Saturday | 66°F | Showers And Thunderstorms Likely | 10 mph ESE | 71% |
| Saturday Night | 51°F | Showers And Thunderstorms Likely | 3 to 9 mph ENE | 59% |
| Sunday | 71°F | Slight Chance Rain Showers then Partly Sunny | 6 to 12 mph NE | 16% |
| Sunday Night | 45°F | Mostly Cloudy | 5 to 12 mph NE | 1% |
| Monday | 67°F | Mostly Cloudy | 9 mph ENE | 2% |
| Monday Night | 42°F | Mostly Cloudy | 5 to 9 mph ENE | 3% |
| Tuesday | 67°F | Partly Sunny | 7 to 10 mph ENE | 8% |
| Tuesday Night | 43°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 8 mph ENE | 17% |
| Wednesday | 68°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 8 mph ENE | 17% |
| Wednesday Night | 46°F | Partly Cloudy | 3 to 7 mph NE | 12% |
| Thursday | 70°F | Partly Sunny | 3 to 7 mph NNE | 2% |
| Thursday Night | 46°F | Partly Cloudy | 1 to 6 mph NE | 3% |
| Friday | 73°F | Mostly Sunny | 1 to 7 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Custer (43.951, -86.220). Updated through the day.
Growing snapshot for Custer
Last spring frost
May 17
First fall frost
Oct 7
Growing season
144 days
Hardiness zone
6a
More local growing data for Custer: nearby ZIP 49405 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ludington 4 Se, Mi (10.2 mi from Custer). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.