Ironton, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ironton, a community in Charlevoix County, Michigan.
Tonight
46°F
Mostly Cloudy
Mostly cloudy. Low around 46, with temperatures rising to around 48 overnight. East wind around 5 mph.
7-day forecast for Ironton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 5 mph E | 6% |
| Saturday | 69°F | Scattered Rain Showers | 5 to 10 mph SE | 29% |
| Saturday Night | 49°F | Scattered Rain Showers | 5 mph E | 31% |
| Sunday | 69°F | Isolated Rain Showers then Partly Sunny | 5 to 10 mph NE | 19% |
| Sunday Night | 46°F | Mostly Cloudy | 10 mph NE | 0% |
| Monday | 63°F | Partly Sunny | 10 mph E | 0% |
| Monday Night | 44°F | Mostly Cloudy | 5 to 10 mph E | 0% |
| Tuesday | 65°F | Mostly Sunny | 5 to 15 mph E | 3% |
| Tuesday Night | 45°F | Partly Cloudy | 5 to 15 mph E | 8% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph E | 13% |
| Wednesday Night | 47°F | Partly Cloudy | 5 to 10 mph E | 12% |
| Thursday | 69°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 48°F | Partly Cloudy | 0 to 5 mph E | 4% |
| Friday | 71°F | Mostly Sunny | 0 to 10 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Ironton (45.257, -85.193). Updated through the day.
Growing snapshot for Ironton
Last spring frost
May 1
First fall frost
Oct 28
Growing season
178 days
Hardiness zone
6a
More local growing data for Ironton: nearby ZIP 49720 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Charlevoix, Mi (2.8 mi from Ironton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.