Cass Lake, MN Weather & Growing Conditions
Today
50°F
Light Rain
Rain. Cloudy. High near 50, with temperatures falling to around 46 in the afternoon. North wind around 9 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Light Rain | 9 mph N | 99% |
| Tonight | 32°F | Mostly Cloudy | 5 to 9 mph N | 4% |
| Thursday | 40°F | Mostly Cloudy | 3 to 7 mph N | 0% |
| Thursday Night | 21°F | Partly Cloudy | 2 mph NNE | 0% |
| Friday | 41°F | Sunny | 2 mph SSE | 0% |
| Friday Night | 23°F | Partly Cloudy | 2 mph SSW | 0% |
| Saturday | 48°F | Mostly Sunny | 5 mph SW | 6% |
| Saturday Night | 30°F | Partly Cloudy | 3 mph W | 9% |
| Sunday | 50°F | Mostly Sunny | 5 mph W | 3% |
| Sunday Night | 32°F | Partly Cloudy | 2 mph SSW | 0% |
| Monday | 55°F | Partly Sunny | 2 to 7 mph WSW | 1% |
| Monday Night | 31°F | Mostly Clear | 3 mph WNW | 1% |
| Tuesday | 50°F | Mostly Sunny | 3 mph WNW | 3% |
| Tuesday Night | 30°F | Partly Cloudy | 1 mph NW | 4% |
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 (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.