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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

WhenTempForecastWindPrecip
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

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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.