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Ottertail, MN Weather & Growing Conditions

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

This Afternoon
50°F
Cloudy
Cloudy. High near 50, with temperatures falling to around 46 in the afternoon. North northwest wind around 21 mph. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Ottertail

WhenTempForecastWindPrecip
This Afternoon 50°F Cloudy 21 mph NNW 11%
Tonight 43°F Light Rain 20 to 23 mph N 79%
Wednesday 48°F Light Rain 20 to 23 mph N 89%
Wednesday Night 37°F Chance Light Rain then Mostly Cloudy 18 to 23 mph N 28%
Thursday 42°F Partly Sunny 10 to 18 mph N 1%
Thursday Night 30°F Mostly Cloudy 3 to 9 mph ENE 0%
Friday 42°F Mostly Sunny 5 mph SSE 0%
Friday Night 32°F Partly Cloudy 3 to 7 mph SSW 0%
Saturday 51°F Mostly Sunny 7 to 12 mph SW 8%
Saturday Night 36°F Partly Cloudy 10 mph W 14%
Sunday 52°F Mostly Sunny 10 mph WSW 5%
Sunday Night 38°F Partly Cloudy 9 mph SSW 1%
Monday 54°F Mostly Sunny 10 to 17 mph WSW 1%
Monday Night 37°F Mostly Clear 7 to 10 mph WNW 0%

Forecast source: National Weather Service (api.weather.gov) for Ottertail (46.432, -95.571). Updated through the day.

Growing snapshot for Ottertail

Last spring frost
May 5
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
4a

More local growing data for Ottertail: nearby ZIP 56571 weather · frost dates · planting calendar · Minnesota frost dates

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Climate data from the nearest NOAA station, Ottertail, Mn (1.4 mi from Ottertail). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.