Federal Dam, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Federal Dam, a city in Cass County, Minnesota.
Overnight
49°F
Mostly Cloudy
Mostly cloudy, with a low around 49. East wind around 0 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Federal Dam
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Cloudy | 0 mph | 6% |
| Saturday | 68°F | Patchy Fog then Partly Sunny | 0 to 5 mph NE | 3% |
| Saturday Night | 49°F | Mostly Cloudy | 0 to 5 mph N | 1% |
| Sunday | 64°F | Partly Sunny | 0 to 5 mph NE | 0% |
| Sunday Night | 42°F | Mostly Cloudy | 0 mph | 0% |
| Monday | 63°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Monday Night | 40°F | Mostly Clear | 0 to 5 mph E | 0% |
| Tuesday | 64°F | Sunny | 0 to 5 mph SE | 0% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Wednesday | 65°F | Mostly Sunny | 0 to 5 mph S | 1% |
| Wednesday Night | 46°F | Partly Cloudy | 0 mph | 13% |
| Thursday | 68°F | Partly Sunny | 0 to 5 mph S | 13% |
| Thursday Night | 49°F | Partly Cloudy | 0 mph | 8% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph S | 5% |
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 Sep 19, 2026.