Cass Lake, MN Weather & Growing Conditions
Tonight
45°F
Rain
Rain. Cloudy, with a low around 45. North wind 5 to 10 mph, with gusts as high as 25 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 | 45°F | Rain | 5 to 10 mph N | 79% |
| Wednesday | 48°F | Rain | 10 mph N | 89% |
| Wednesday Night | 33°F | Chance Light Rain then Mostly Cloudy | 5 to 10 mph N | 50% |
| Thursday | 40°F | Partly Sunny | 5 to 10 mph N | 1% |
| Thursday Night | 25°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 41°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 27°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph SW | 9% |
| Saturday Night | 32°F | Partly Cloudy | 5 mph W | 14% |
| Sunday | 52°F | Mostly Sunny | 5 mph W | 12% |
| Sunday Night | 34°F | Partly Cloudy | 0 to 5 mph S | 1% |
| Monday | 54°F | Mostly Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 33°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 48°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cass Lake, MN
Last spring frost
May 17
First fall frost
Sep 26
Growing season
131 days
Hardiness zone
3b
Explore more for Cass Lake, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Cass Lake, Mn (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.