Boulder Junction, WI Weather & Growing Conditions
Today
60°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 60. East wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 60°F | Chance Rain Showers | 7 mph E | 29% |
| Tonight | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 1 to 5 mph NE | 17% |
| Sunday | 62°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Sunday Night | 39°F | Mostly Cloudy | 2 to 8 mph NE | 0% |
| Monday | 63°F | Partly Sunny | 2 to 6 mph E | 0% |
| Monday Night | 36°F | Partly Cloudy then Patchy Fog | 0 to 5 mph E | 0% |
| Tuesday | 65°F | Patchy Frost then Sunny | 0 to 6 mph E | 0% |
| Tuesday Night | 37°F | Mostly Clear then Patchy Fog | 0 to 3 mph E | 0% |
| Wednesday | 68°F | Patchy Fog then Sunny | 0 to 6 mph ESE | 0% |
| Wednesday Night | 40°F | Mostly Clear then Patchy Fog | 0 to 3 mph ENE | 1% |
| Thursday | 69°F | Patchy Fog then Mostly Sunny | 0 to 3 mph ENE | 2% |
| Thursday Night | 42°F | Partly Cloudy | 2 mph ENE | 3% |
| Friday | 71°F | Mostly Sunny | 0 to 3 mph SSE | 3% |
| Friday Night | 43°F | Partly Cloudy | 2 mph SSE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boulder Junction, WI
Last spring frost
May 25
First fall frost
Sep 21
Growing season
117 days
Hardiness zone
4a
Explore more for Boulder Junction, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Rest Lake, Wi (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.