Barnum, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Barnum, a city in Carlton County, Minnesota.
This Afternoon
58°F
Rain
Rain and patchy fog. Cloudy. High near 58, with temperatures falling to around 55 in the afternoon. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Barnum
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Rain | 10 mph N | 82% |
| Tonight | 49°F | Rain | 10 mph NE | 87% |
| Wednesday | 52°F | Rain | 10 mph N | 84% |
| Wednesday Night | 39°F | Light Rain | 10 mph N | 85% |
| Thursday | 44°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 26% |
| Thursday Night | 28°F | Mostly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 43°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 24°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 49°F | Mostly Sunny | 0 to 5 mph SW | 2% |
| Saturday Night | 32°F | Partly Cloudy | 5 mph W | 11% |
| Sunday | 53°F | Mostly Sunny | 5 mph W | 8% |
| Sunday Night | 32°F | Partly Cloudy | 0 to 5 mph SW | 2% |
| Monday | 54°F | Mostly Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 34°F | Partly Cloudy | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Barnum (46.505, -92.688). Updated through the day.
Growing snapshot for Barnum
Last spring frost
May 12
First fall frost
Oct 2
Growing season
144 days
Hardiness zone
4a
More local growing data for Barnum: nearby ZIP 55707 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Big Lake
Carlton
Cloquet
Cromwell
Esko
Kettle River
Mahnomen
Mahtowa
Moose Lake
Scanlon
Sturgeon Lake
Wrenshall
Wright
Climate data from the nearest NOAA station, Moose Lake 1 Sse, Mn (9.8 mi from Barnum). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.