Ironton, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ironton, a community in Charlevoix County, Michigan.
Today
86°F
Sunny
Sunny. High near 86, with temperatures falling to around 84 in the afternoon. Southwest wind 10 to 15 mph.
7-day forecast for Ironton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 10 to 15 mph SW | 1% |
| Tonight | 63°F | Showers And Thunderstorms | 5 to 15 mph W | 77% |
| Wednesday | 77°F | Showers And Thunderstorms Likely | 5 mph N | 58% |
| Wednesday Night | 57°F | Mostly Cloudy | 0 to 5 mph NE | 10% |
| Thursday | 80°F | Mostly Sunny | 0 to 5 mph S | 9% |
| Thursday Night | 60°F | Mostly Clear | 0 to 5 mph SW | 5% |
| Friday | 84°F | Sunny | 5 to 10 mph SW | 1% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph SW | 10% |
| Saturday | 82°F | Sunny then Slight Chance Rain Showers | 5 to 10 mph SW | 18% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 41% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 41% |
| Sunday Night | 61°F | Chance Rain Showers | 5 to 10 mph W | 43% |
| Monday | 80°F | Chance Rain Showers | 5 to 10 mph W | 25% |
| Monday Night | 60°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 34% |
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 Aug 4, 2026.