Middle River, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middle River, a city in Roseau County, Minnesota.
Today
67°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers between 2pm and 4pm. Mostly cloudy. High near 67, with temperatures falling to around 65 in the afternoon. Northeast wind 2 to 14 mph. Chance of precipitation is 20%.
7-day forecast for Middle River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 14 mph NE | 23% |
| Tonight | 45°F | Partly Cloudy | 8 to 14 mph NNE | 1% |
| Sunday | 64°F | Partly Sunny | 8 to 12 mph NE | 0% |
| Sunday Night | 39°F | Mostly Cloudy | 6 to 10 mph E | 0% |
| Monday | 66°F | Sunny | 6 to 9 mph SE | 0% |
| Monday Night | 38°F | Mostly Clear | 9 mph SE | 0% |
| Tuesday | 67°F | Sunny | 9 to 16 mph SSE | 0% |
| Tuesday Night | 43°F | Mostly Clear | 14 mph SSE | 1% |
| Wednesday | 68°F | Mostly Sunny | 14 to 21 mph SSE | 1% |
| Wednesday Night | 47°F | Partly Cloudy | 12 to 15 mph SSE | 11% |
| Thursday | 70°F | Partly Sunny | 10 to 16 mph SSE | 11% |
| Thursday Night | 50°F | Partly Cloudy | 13 mph SSE | 11% |
| Friday | 72°F | Mostly Sunny | 12 to 18 mph S | 7% |
| Friday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 15 to 18 mph SSE | 15% |
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 19, 2026.