Iron Junction, MN Weather & Growing Conditions
This Afternoon
68°F
Mostly Cloudy
Mostly cloudy, with a high near 68. Northeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Mostly Cloudy | 0 to 5 mph NE | 2% |
| Tonight | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph N | 20% |
| Sunday | 63°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Sunday Night | 37°F | Mostly Cloudy | 0 to 5 mph E | 1% |
| Monday | 61°F | Patchy Frost then Mostly Sunny | 0 to 5 mph E | 1% |
| Monday Night | 33°F | Mostly Clear then Areas Of Frost | 0 to 5 mph E | 0% |
| Tuesday | 62°F | Areas Of Frost then Sunny | 0 to 10 mph SE | 0% |
| Tuesday Night | 35°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Wednesday | 64°F | Sunny | 0 to 10 mph SE | 0% |
| Wednesday Night | 38°F | Mostly Clear | 0 to 5 mph SE | 3% |
| Thursday | 66°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Thursday Night | 42°F | Partly Cloudy | 0 to 5 mph SE | 5% |
| Friday | 69°F | Partly Sunny | 0 to 5 mph S | 5% |
| Friday Night | 45°F | Partly Cloudy | 5 mph SE | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Iron Junction, MN
Last spring frost
Jun 5
First fall frost
Sep 8
Growing season
93 days
Hardiness zone
3b
Explore more for Iron Junction, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Hibbing Chisholm Hibbing Ap, Mn (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.