Eagle Harbor, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Eagle Harbor, a community in Keweenaw County, Michigan.
Tonight
50°F
Mostly Cloudy
Mostly cloudy, with a low around 50. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast for Eagle Harbor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Mostly Cloudy | 5 to 10 mph SE | 4% |
| Saturday | 64°F | Mostly Sunny | 5 mph SE | 3% |
| Saturday Night | 50°F | Mostly Cloudy | 0 to 10 mph E | 13% |
| Sunday | 60°F | Partly Sunny | 10 to 20 mph NE | 13% |
| Sunday Night | 49°F | Partly Cloudy | 10 mph NE | 0% |
| Monday | 60°F | Partly Sunny | 10 mph E | 0% |
| Monday Night | 49°F | Partly Cloudy | 5 to 10 mph E | 0% |
| Tuesday | 60°F | Sunny | 5 to 10 mph E | 0% |
| Tuesday Night | 49°F | Mostly Clear | 5 to 10 mph SE | 0% |
| Wednesday | 62°F | Sunny | 5 to 10 mph SE | 2% |
| Wednesday Night | 51°F | Mostly Clear | 5 to 10 mph SE | 2% |
| Thursday | 65°F | Mostly Sunny | 5 mph S | 3% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph S | 6% |
| Friday | 67°F | Mostly Sunny | 5 mph NW | 6% |
Forecast source: National Weather Service (api.weather.gov) for Eagle Harbor (47.452, -88.153). Updated through the day.
Growing snapshot for Eagle Harbor
Last spring frost
May 10
First fall frost
Oct 21
Growing season
161 days
Hardiness zone
5b
More local growing data for Eagle Harbor: nearby ZIP 49950 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Copper Harbor, Mi (13 mi from Eagle Harbor). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.