Willow River, MN Weather & Growing Conditions
Today
62°F
Patchy Fog then Cloudy
Patchy fog and a slight chance of rain showers before 11am. Cloudy, with a high near 62. Northeast wind 0 to 5 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 62°F | Patchy Fog then Cloudy | 0 to 5 mph NE | 16% |
| Tonight | 47°F | Mostly Cloudy | 0 to 5 mph NE | 2% |
| Sunday | 63°F | Mostly Cloudy | 5 to 10 mph NE | 1% |
| Sunday Night | 40°F | Mostly Cloudy | 5 to 10 mph NE | 0% |
| Monday | 63°F | Mostly Sunny | 5 mph E | 0% |
| Monday Night | 39°F | Mostly Clear | 0 to 5 mph NE | 1% |
| Tuesday | 65°F | Sunny | 0 to 5 mph E | 1% |
| Tuesday Night | 37°F | Mostly Clear | 0 to 5 mph NE | 1% |
| Wednesday | 66°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 40°F | Mostly Clear | 0 mph | 3% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph SE | 6% |
| Thursday Night | 43°F | Partly Cloudy | 0 mph | 5% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph E | 3% |
| Friday Night | 46°F | Partly Cloudy | 0 mph | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Willow River, MN
Last spring frost
May 12
First fall frost
Oct 2
Growing season
144 days
Hardiness zone
4a
Explore more for Willow River, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Moose Lake 1 Sse, Mn (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.