Barnum, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Barnum, a city in Carlton County, Minnesota.
Today
73°F
Sunny
Sunny, with a high near 73. West wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast for Barnum
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 5 to 10 mph W | 0% |
| Tonight | 48°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Wednesday | 77°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 55°F | Partly Cloudy | 0 to 5 mph SW | 1% |
| Thursday | 83°F | Sunny | 5 to 15 mph SW | 5% |
| Thursday Night | 60°F | Mostly Clear | 5 to 10 mph SW | 6% |
| Friday | 85°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 17% |
| Friday Night | 57°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 25% |
| Saturday | 82°F | Mostly Sunny | 0 to 5 mph W | 13% |
| Saturday Night | 57°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 39% |
| Sunday | 77°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 26% |
| Sunday Night | 56°F | Partly Cloudy | 0 to 5 mph N | 14% |
| Monday | 79°F | Slight Chance Rain Showers | 0 to 5 mph N | 20% |
| Monday Night | 55°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 17% |
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 Aug 4, 2026.