Middle River, MN Weather & Growing Conditions
Today
70°F
Sunny
Sunny, with a high near 70. West wind 12 to 15 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Sunny | 12 to 15 mph W | 0% |
| Tonight | 48°F | Mostly Clear | 5 to 14 mph SW | 1% |
| Wednesday | 77°F | Mostly Sunny | 7 to 18 mph SW | 0% |
| Wednesday Night | 55°F | Partly Cloudy | 10 to 16 mph SW | 14% |
| Thursday | 80°F | Sunny | 9 to 16 mph WSW | 3% |
| Thursday Night | 55°F | Mostly Clear | 8 to 14 mph SW | 7% |
| Friday | 78°F | Sunny | 7 to 15 mph W | 7% |
| Friday Night | 52°F | Mostly Clear | 5 to 14 mph NNE | 8% |
| Saturday | 76°F | Mostly Sunny | 5 to 13 mph N | 8% |
| Saturday Night | 53°F | Mostly Clear | 5 to 13 mph N | 14% |
| Sunday | 74°F | Mostly Sunny | 5 to 12 mph N | 11% |
| Sunday Night | 54°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 12 mph N | 20% |
| Monday | 75°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 12 mph N | 20% |
| Monday Night | 54°F | Partly Cloudy | 5 to 12 mph NNE | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Middle River, MN
Last spring frost
May 6
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
3b
Explore more for Middle River, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Agassiz Refuge, Mn (7.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.