Ottertail, MN Weather & Growing Conditions
Overnight
53°F
Cloudy
Cloudy. Low around 53, with temperatures rising to around 55 overnight. East wind around 12 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Cloudy | 12 mph E | 10% |
| Saturday | 66°F | Mostly Cloudy | 10 mph NE | 5% |
| Saturday Night | 52°F | Mostly Cloudy | 6 to 9 mph NE | 0% |
| Sunday | 65°F | Mostly Cloudy | 9 to 13 mph ENE | 0% |
| Sunday Night | 46°F | Mostly Cloudy | 9 mph E | 3% |
| Monday | 63°F | Partly Sunny | 9 mph E | 3% |
| Monday Night | 43°F | Partly Cloudy | 7 mph ESE | 0% |
| Tuesday | 64°F | Mostly Sunny | 6 to 12 mph SE | 0% |
| Tuesday Night | 46°F | Mostly Clear | 8 mph SE | 1% |
| Wednesday | 65°F | Mostly Sunny | 7 to 14 mph SSE | 4% |
| Wednesday Night | 50°F | Partly Cloudy then Slight Chance Rain Showers | 9 mph SSE | 17% |
| Thursday | 68°F | Slight Chance Rain Showers then Partly Sunny | 7 to 10 mph S | 17% |
| Thursday Night | 52°F | Partly Cloudy | 6 mph SSE | 7% |
| Friday | 70°F | Mostly Sunny | 6 to 12 mph SSE | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ottertail, MN
Last spring frost
May 5
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
4a
Explore more for Ottertail, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Ottertail, Mn (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.