Middle River, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middle River, a city in Roseau County, Minnesota.
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. North northeast wind 8 to 14 mph.
7-day forecast for Middle River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 8 to 14 mph NNE | 0% |
| Sunday | 65°F | Partly Sunny | 8 to 12 mph ENE | 0% |
| Sunday Night | 42°F | Mostly Cloudy | 6 to 10 mph E | 0% |
| Monday | 66°F | Mostly Sunny | 6 to 9 mph SE | 0% |
| Monday Night | 40°F | Mostly Clear | 8 mph SE | 0% |
| Tuesday | 66°F | Sunny | 9 to 15 mph SSE | 0% |
| Tuesday Night | 43°F | Mostly Clear | 10 to 14 mph SSE | 0% |
| Wednesday | 68°F | Sunny | 15 to 22 mph SSE | 2% |
| Wednesday Night | 49°F | Partly Cloudy then Slight Chance Rain Showers | 14 to 17 mph SSE | 16% |
| Thursday | 68°F | Chance Rain Showers | 15 to 18 mph SSE | 35% |
| Thursday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 14 mph S | 23% |
| Friday | 73°F | Partly Sunny | 9 to 16 mph S | 6% |
| Friday Night | 55°F | Partly Cloudy | 15 to 18 mph SSE | 13% |
| Saturday | 71°F | Chance Rain Showers | 18 to 23 mph S | 35% |
Forecast source: National Weather Service (api.weather.gov) for Middle River (48.435, -96.162). Updated through the day.
Growing snapshot for Middle River
Last spring frost
May 6
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
3b
More local growing data for Middle River: nearby ZIP 56759 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Agassiz Refuge, Mn (17.9 mi from Middle River). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.