Blackduck, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blackduck, a city in Beltrami County, Minnesota.
Tonight
42°F
Rain
Rain. Cloudy. Low around 42, with temperatures rising to around 44 overnight. North wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Blackduck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Rain | 10 mph N | 83% |
| Wednesday | 47°F | Light Rain | 10 to 14 mph N | 88% |
| Wednesday Night | 33°F | Slight Chance Light Rain then Mostly Cloudy | 10 to 14 mph NNW | 17% |
| Thursday | 40°F | Partly Sunny | 5 to 12 mph NNE | 0% |
| Thursday Night | 23°F | Partly Cloudy | 0 to 3 mph ENE | 0% |
| Friday | 42°F | Mostly Sunny | 0 to 3 mph S | 0% |
| Friday Night | 26°F | Partly Cloudy | 3 mph S | 0% |
| Saturday | 50°F | Mostly Sunny | 3 to 7 mph SW | 9% |
| Saturday Night | 32°F | Partly Cloudy | 6 mph W | 14% |
| Sunday | 51°F | Mostly Sunny | 6 mph W | 12% |
| Sunday Night | 33°F | Partly Cloudy | 5 mph SSW | 2% |
| Monday | 53°F | Mostly Sunny | 5 to 12 mph WSW | 1% |
| Monday Night | 32°F | Mostly Clear | 3 to 8 mph WNW | 1% |
| Tuesday | 48°F | Mostly Sunny | 6 mph WNW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Blackduck (47.721, -94.546). Updated through the day.
Growing snapshot for Blackduck
Last spring frost
May 24
First fall frost
Sep 17
Growing season
115 days
Hardiness zone
3b
More local growing data for Blackduck: nearby ZIP 56630 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Blackduck, Mn (4.7 mi from Blackduck). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.