Iron River, MI Weather & Growing Conditions
Today
76°F
Chance Rain Showers
A chance of rain showers between 8am and 1pm. Partly sunny. High near 76, with temperatures falling to around 73 in the afternoon. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Chance Rain Showers | 5 to 10 mph W | 28% |
| Tonight | 50°F | Mostly Cloudy | 0 to 5 mph NW | 6% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 0 mph | 0% |
| Thursday | 82°F | Sunny | 0 to 5 mph SW | 1% |
| Thursday Night | 58°F | Mostly Clear | 5 mph SW | 3% |
| Friday | 85°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Friday Night | 60°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 26% |
| Saturday | 81°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 24% |
| Saturday Night | 56°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 47% |
| Sunday | 78°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 47% |
| Sunday Night | 54°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 33% |
| Monday | 78°F | Slight Chance Rain Showers | 0 to 5 mph NW | 24% |
| Monday Night | 53°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Iron River, MI
Last spring frost
Jun 4
First fall frost
Sep 10
Growing season
95 days
Hardiness zone
4a
Explore more for Iron River, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Stambaugh 2Sse, Mi (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.