Cass Lake, MN Weather & Growing Conditions
Today
72°F
Sunny
Sunny, with a high near 72. West northwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Sunny | 9 mph WNW | 0% |
| Tonight | 49°F | Mostly Clear | 0 to 7 mph W | 0% |
| Wednesday | 78°F | Sunny | 1 to 5 mph WSW | 0% |
| Wednesday Night | 59°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SW | 16% |
| Thursday | 83°F | Slight Chance Rain Showers then Sunny | 7 mph SW | 16% |
| Thursday Night | 60°F | Mostly Clear | 2 to 6 mph SW | 13% |
| Friday | 83°F | Sunny | 2 to 6 mph W | 12% |
| Friday Night | 55°F | Mostly Clear | 0 to 6 mph NW | 14% |
| Saturday | 80°F | Slight Chance Rain Showers | 1 to 5 mph SW | 16% |
| Saturday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph N | 22% |
| Sunday | 79°F | Mostly Sunny | 1 to 5 mph NNW | 14% |
| Sunday Night | 56°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 3 mph N | 17% |
| Monday | 78°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph N | 17% |
| Monday Night | 56°F | Slight Chance Rain Showers | 3 mph N | 17% |
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 Aug 4, 2026.