Ironwood, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ironwood, a city in Gogebic County, Michigan.
This Afternoon
63°F
Rain Showers
Rain showers. Cloudy. High near 63, with temperatures falling to around 59 in the afternoon. Northwest wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Ironwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Rain Showers | 5 mph NW | 95% |
| Tonight | 54°F | Rain Showers | 0 to 5 mph E | 92% |
| Wednesday | 60°F | Rain Showers | 5 mph SE | 88% |
| Wednesday Night | 40°F | Rain Showers | 5 to 10 mph NW | 96% |
| Thursday | 42°F | Rain Showers | 10 to 15 mph N | 99% |
| Thursday Night | 26°F | Chance Rain Showers then Cloudy | 5 to 15 mph NE | 34% |
| Friday | 40°F | Partly Sunny | 5 to 10 mph NE | 3% |
| Friday Night | 23°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 46°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 29°F | Partly Cloudy | 5 mph W | 14% |
| Sunday | 49°F | Slight Chance Rain Showers | 5 to 10 mph W | 17% |
| Sunday Night | 30°F | Partly Cloudy | 5 to 10 mph SW | 13% |
| Monday | 52°F | Partly Sunny | 10 to 15 mph SW | 3% |
| Monday Night | 33°F | Partly Cloudy | 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Ironwood (46.452, -90.150). Updated through the day.
Growing snapshot for Ironwood
Last spring frost
May 19
First fall frost
Sep 28
Growing season
130 days
Hardiness zone
4b
More local growing data for Ironwood: nearby ZIP 49938 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ironwood #2, Mi (4.2 mi from Ironwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.