Isle, MN Weather & Growing Conditions
Today
73°F
Mostly Sunny
Mostly sunny, with a high near 73. Northwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Mostly Sunny | 10 mph NW | 0% |
| Tonight | 50°F | Mostly Clear | 0 to 10 mph W | 0% |
| Wednesday | 78°F | Sunny | 0 to 10 mph SW | 1% |
| Wednesday Night | 56°F | Mostly Clear | 5 to 10 mph SW | 1% |
| Thursday | 83°F | Sunny | 5 to 15 mph SW | 2% |
| Thursday Night | 61°F | Mostly Clear | 5 to 10 mph SW | 8% |
| Friday | 83°F | Sunny | 5 to 10 mph SW | 10% |
| Friday Night | 59°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 23% |
| Saturday | 81°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 17% |
| Saturday Night | 59°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph N | 42% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 28% |
| Sunday Night | 58°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 16% |
| Monday | 79°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 19% |
| Monday Night | 57°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 18% |
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 Aug 4, 2026.