Ironton, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ironton, a community in Charlevoix County, Michigan.
Today
69°F
Rain Showers Likely
Rain showers likely. Mostly cloudy. High near 69, with temperatures falling to around 64 in the afternoon. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Ironton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Rain Showers Likely | 10 to 15 mph S | 55% |
| Tonight | 46°F | Chance Rain Showers | 10 to 15 mph SW | 49% |
| Thursday | 54°F | Rain Showers Likely | 15 mph W | 60% |
| Thursday Night | 35°F | Rain Showers | 15 mph N | 93% |
| Friday | 46°F | Rain Showers Likely | 10 to 15 mph N | 64% |
| Friday Night | 31°F | Chance Rain Showers | 5 to 10 mph N | 45% |
| Saturday | 48°F | Mostly Sunny | 5 to 10 mph N | 14% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph W | 7% |
| Sunday | 50°F | Slight Chance Rain Showers | 5 to 15 mph W | 23% |
| Sunday Night | 36°F | Slight Chance Rain Showers | 5 to 10 mph NW | 23% |
| Monday | 54°F | Mostly Sunny | 5 to 15 mph W | 6% |
| Monday Night | 39°F | Mostly Cloudy | 10 mph W | 9% |
| Tuesday | 53°F | Mostly Sunny | 10 to 15 mph NW | 12% |
| Tuesday Night | 35°F | Mostly Cloudy | 5 to 10 mph NW | 12% |
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 Nov 4, 2026.