Ottertail, MN Weather & Growing Conditions
Tonight
41°F
Light Rain
Rain before 2am, then rain and patchy fog. Cloudy. Low around 41, with temperatures rising to around 45 overnight. North wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 41°F | Light Rain | 17 mph N | 79% |
| Wednesday | 47°F | Light Rain | 20 mph N | 87% |
| Wednesday Night | 35°F | Chance Light Rain then Mostly Cloudy | 14 to 20 mph N | 32% |
| Thursday | 42°F | Partly Sunny | 9 to 15 mph N | 1% |
| Thursday Night | 28°F | Mostly Cloudy | 2 to 8 mph ENE | 0% |
| Friday | 42°F | Mostly Sunny | 5 mph SSE | 0% |
| Friday Night | 30°F | Partly Cloudy | 6 mph SSW | 0% |
| Saturday | 51°F | Mostly Sunny | 6 to 12 mph SW | 8% |
| Saturday Night | 34°F | Partly Cloudy | 9 mph W | 14% |
| Sunday | 52°F | Mostly Sunny | 7 to 10 mph W | 5% |
| Sunday Night | 37°F | Partly Cloudy | 8 mph SSW | 1% |
| Monday | 53°F | Mostly Sunny | 9 to 17 mph WSW | 1% |
| Monday Night | 35°F | Mostly Clear | 6 to 10 mph WNW | 0% |
| Tuesday | 49°F | Mostly Sunny | 6 to 9 mph WNW | 0% |
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 Nov 4, 2026.