Willow River, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willow River, a city in Pine County, Minnesota.
Tonight
50°F
Chance Rain Showers
A chance of rain showers before midnight, then a chance of rain showers and patchy fog between midnight and 1am, then a chance of drizzle and patchy fog between 1am and 5am, then patchy fog and a slight chance of drizzle. Cloudy, with a low around 50. East wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Willow River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Chance Rain Showers | 5 mph E | 38% |
| Saturday | 63°F | Patchy Fog then Mostly Cloudy | 5 mph NE | 18% |
| Saturday Night | 47°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Sunday | 63°F | Partly Sunny | 5 to 10 mph NE | 0% |
| Sunday Night | 41°F | Mostly Cloudy | 5 to 10 mph NE | 0% |
| Monday | 62°F | Partly Sunny | 0 to 5 mph E | 0% |
| Monday Night | 38°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Tuesday | 65°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Tuesday Night | 39°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Wednesday | 66°F | Sunny | 0 to 5 mph E | 0% |
| Wednesday Night | 42°F | Partly Cloudy | 0 to 5 mph E | 10% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph S | 10% |
| Thursday Night | 46°F | Partly Cloudy | 0 mph | 6% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph SE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Willow River (46.324, -92.830). Updated through the day.
Growing snapshot for Willow River
Last spring frost
May 12
First fall frost
Oct 2
Growing season
144 days
Hardiness zone
4a
More local growing data for Willow River: nearby ZIP 55795 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Askov
Bruno
Denham
Finlayson
Grasston
Henriette
Hinckley
Kerrick
Pine City
Quamba
Rock Creek
Rutledge
Sandstone
Climate data from the nearest NOAA station, Moose Lake 1 Sse, Mn (11.3 mi from Willow River). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.