Federal Dam, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Federal Dam, a city in Cass County, Minnesota.
This Afternoon
49°F
Light Rain
Rain and patchy fog. Cloudy. High near 49, with temperatures falling to around 47 in the afternoon. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Federal Dam
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Light Rain | 10 mph N | 91% |
| Tonight | 30°F | Chance Light Rain then Mostly Cloudy | 10 mph N | 44% |
| Thursday | 42°F | Mostly Cloudy | 5 to 10 mph N | 1% |
| Thursday Night | 23°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Friday | 43°F | Sunny | 0 mph | 0% |
| Friday Night | 23°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph W | 2% |
| Sunday | 52°F | Sunny | 0 to 5 mph W | 1% |
| Sunday Night | 34°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 57°F | Mostly Sunny | 5 mph SW | 0% |
| Monday Night | 32°F | Mostly Clear | 0 to 5 mph W | 1% |
| Tuesday | 51°F | Mostly Sunny | 0 to 5 mph NW | 2% |
| Tuesday Night | 30°F | Partly Cloudy | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Federal Dam (47.240, -94.212). Updated through the day.
Growing snapshot for Federal Dam
Last spring frost
May 8
First fall frost
Oct 1
Growing season
144 days
Hardiness zone
3b
More local growing data for Federal Dam: nearby ZIP 56641 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Backus
Bena
Boy River
Cass Lake
Chickamaw Beach
Hackensack
Jenkins
Longville
Motley
Pequot Lakes
Pillager
Pine River
Remer
Walker
Whipholt
Climate data from the nearest NOAA station, Leech Lake, Mn (3.6 mi from Federal Dam). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.