Cass Lake, MN Weather & Growing Conditions
Today
72°F
Sunny
Sunny, with a high near 72. West wind around 5 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Sunny | 5 mph W | 0% |
| Tonight | 50°F | Mostly Clear | 0 to 5 mph W | 0% |
| Wednesday | 78°F | Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 60°F | Partly Cloudy | 0 to 5 mph SW | 13% |
| Thursday | 83°F | Sunny | 5 to 10 mph SW | 13% |
| Thursday Night | 62°F | Mostly Clear | 5 mph SW | 12% |
| Friday | 83°F | Sunny | 5 mph W | 14% |
| Friday Night | 57°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 15% |
| Saturday | 81°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 16% |
| Saturday Night | 58°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 23% |
| Sunday | 80°F | Slight Chance Rain Showers | 0 to 5 mph N | 17% |
| Sunday Night | 58°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 19% |
| Monday | 80°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 19% |
| Monday Night | 58°F | Slight Chance Rain Showers | 0 to 5 mph N | 19% |
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 Aug 4, 2026.