Iron Belt, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Iron Belt, a community in Iron County, Wisconsin.
Overnight
53°F
Light Rain Likely
Rain likely and patchy fog. Cloudy. Low around 53, with temperatures rising to around 55 overnight. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Iron Belt
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Light Rain Likely | 5 mph SE | 67% |
| Wednesday | 60°F | Light Rain | 5 mph S | 79% |
| Wednesday Night | 37°F | Light Rain | 5 to 15 mph NW | 88% |
| Thursday | 42°F | Light Rain then Slight Chance Rain And Snow | 15 mph N | 88% |
| Thursday Night | 23°F | Chance Rain And Snow | 5 to 10 mph N | 33% |
| Friday | 39°F | Partly Sunny | 0 to 10 mph N | 3% |
| Friday Night | 21°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 43°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 26°F | Partly Cloudy | 5 mph SW | 11% |
| Sunday | 47°F | Slight Chance Light Rain | 5 to 10 mph W | 17% |
| Sunday Night | 28°F | Partly Cloudy | 5 mph SW | 7% |
| Monday | 53°F | Partly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 30°F | Partly Cloudy | 5 to 10 mph W | 5% |
| Tuesday | 49°F | Slight Chance Light Rain then Mostly Sunny | 5 to 10 mph NW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Iron Belt (46.403, -90.319). Updated through the day.
Growing snapshot for Iron Belt
Last spring frost
May 24
First fall frost
Sep 28
Growing season
128 days
Hardiness zone
4a
More local growing data for Iron Belt: nearby ZIP 54536 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hurley, Wi (10.4 mi from Iron Belt). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.