Isanti, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Isanti, a city in Isanti County, Minnesota.
Today
62°F
Cloudy
Cloudy, with a high near 62. Northeast wind around 5 mph.
7-day forecast for Isanti
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 62°F | Cloudy | 5 mph NE | 13% |
| Tonight | 50°F | Mostly Cloudy | 5 mph NNE | 5% |
| Sunday | 65°F | Mostly Cloudy | 5 to 10 mph NE | 1% |
| Sunday Night | 45°F | Mostly Cloudy | 5 to 10 mph NE | 1% |
| Monday | 65°F | Partly Sunny | 5 mph ENE | 2% |
| Monday Night | 40°F | Partly Cloudy | 0 to 5 mph ENE | 1% |
| Tuesday | 65°F | Sunny | 0 to 5 mph E | 1% |
| Tuesday Night | 41°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Wednesday | 67°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 45°F | Mostly Clear | 0 to 5 mph SE | 5% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph SE | 8% |
| Thursday Night | 48°F | Partly Cloudy | 0 to 5 mph SE | 5% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph SE | 5% |
| Friday Night | 50°F | Partly Cloudy | 0 to 5 mph SSE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Isanti (45.492, -93.243). Updated through the day.
Growing snapshot for Isanti
Last spring frost
May 2
First fall frost
Oct 4
Growing season
153 days
Hardiness zone
4b
More local growing data for Isanti: nearby ZIP 55040 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cambridge, Mn (6.4 mi from Isanti). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.