Harbor Springs, MI Weather & Growing Conditions
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 5 mph E | 2% |
| Saturday | 67°F | Mostly Sunny | 5 to 10 mph SE | 10% |
| Saturday Night | 49°F | Scattered Rain Showers | 5 mph E | 27% |
| Sunday | 67°F | Isolated Rain Showers then Mostly Sunny | 5 to 10 mph NE | 18% |
| Sunday Night | 47°F | Partly Cloudy | 10 mph NE | 0% |
| Monday | 59°F | Partly Sunny | 10 mph E | 0% |
| Monday Night | 45°F | Partly Cloudy | 5 to 10 mph E | 0% |
| Tuesday | 61°F | Mostly Sunny | 5 to 15 mph E | 2% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 15 mph E | 7% |
| Wednesday | 65°F | Sunny | 5 to 10 mph E | 13% |
| Wednesday Night | 47°F | Partly Cloudy | 5 to 10 mph E | 12% |
| Thursday | 67°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 48°F | Partly Cloudy | 5 mph E | 5% |
| Friday | 69°F | Mostly Sunny | 5 mph NW | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harbor Springs, MI
Last spring frost
May 15
First fall frost
Oct 16
Growing season
152 days
Hardiness zone
5b
Explore more for Harbor Springs, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Cross Village 1E, Mi (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.