Isle, MN Weather & Growing Conditions
This Afternoon
63°F
Mostly Cloudy
Mostly cloudy, with a high near 63. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Mostly Cloudy | 5 mph NE | 2% |
| Tonight | 50°F | Mostly Cloudy | 0 to 5 mph NE | 2% |
| Sunday | 64°F | Mostly Cloudy | 5 to 10 mph NE | 1% |
| Sunday Night | 41°F | Mostly Cloudy | 5 to 10 mph NE | 0% |
| Monday | 62°F | Partly Sunny | 5 mph E | 0% |
| Monday Night | 38°F | Partly Cloudy | 0 to 5 mph E | 1% |
| Tuesday | 64°F | Sunny | 0 to 5 mph E | 1% |
| Tuesday Night | 39°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 65°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 44°F | Mostly Clear | 0 to 5 mph SE | 6% |
| Thursday | 66°F | Slight Chance Rain Showers | 0 to 5 mph SE | 24% |
| Thursday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 0 mph | 19% |
| Friday | 71°F | Partly Sunny | 0 to 5 mph SE | 7% |
| Friday Night | 51°F | Partly Cloudy | 0 mph | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Isle, MN
Last spring frost
May 10
First fall frost
Oct 3
Growing season
144 days
Hardiness zone
4a
Explore more for Isle, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Isle 12N, Mn (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.