Harman US

Perham, MN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Perham, a city in Otter Tail County, Minnesota.

Tonight
52°F
Slight Chance Rain Showers then Cloudy
A slight chance of rain showers before 9pm. Cloudy. Low around 52, with temperatures rising to around 55 overnight. East wind 8 to 14 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Perham

WhenTempForecastWindPrecip
Tonight 52°F Slight Chance Rain Showers then Cloudy 8 to 14 mph E 19%
Saturday 67°F Mostly Cloudy 10 mph ENE 4%
Saturday Night 51°F Mostly Cloudy 8 mph NE 0%
Sunday 65°F Mostly Cloudy 9 to 13 mph ENE 0%
Sunday Night 45°F Mostly Cloudy 9 mph E 1%
Monday 63°F Partly Sunny 9 mph E 1%
Monday Night 42°F Partly Cloudy 6 mph ESE 0%
Tuesday 64°F Mostly Sunny 6 to 12 mph SE 0%
Tuesday Night 44°F Mostly Clear 6 to 9 mph SE 1%
Wednesday 65°F Mostly Sunny 7 to 14 mph SSE 5%
Wednesday Night 49°F Partly Cloudy then Slight Chance Rain Showers 9 mph SSE 18%
Thursday 68°F Slight Chance Rain Showers then Partly Sunny 6 to 10 mph S 18%
Thursday Night 51°F Partly Cloudy 7 mph SSE 7%
Friday 70°F Mostly Sunny 5 to 12 mph SSE 8%

Forecast source: National Weather Service (api.weather.gov) for Perham (46.600, -95.577). Updated through the day.

Growing snapshot for Perham

Last spring frost
May 10
First fall frost
Sep 29
Growing season
141 days
Hardiness zone
4a

More local growing data for Perham: nearby ZIP 56573 weather · frost dates · planting calendar · Minnesota frost dates

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Climate data from the nearest NOAA station, New York Mills, Mn (9.6 mi from Perham). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.