Harbor Beach, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harbor Beach, a city in Huron County, Michigan.
Overnight
52°F
Mostly Cloudy
Mostly cloudy. Low around 52, with temperatures rising to around 55 overnight. East wind around 8 mph.
7-day forecast for Harbor Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Cloudy | 8 mph E | 0% |
| Saturday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 12 mph ESE | 17% |
| Saturday Night | 55°F | Rain Showers Likely | 10 mph ESE | 62% |
| Sunday | 66°F | Partly Sunny | 9 to 17 mph NE | 11% |
| Sunday Night | 50°F | Partly Cloudy | 13 to 18 mph NE | 0% |
| Monday | 60°F | Mostly Cloudy | 13 to 16 mph NE | 0% |
| Monday Night | 50°F | Mostly Cloudy | 10 to 16 mph ENE | 1% |
| Tuesday | 63°F | Mostly Sunny | 12 to 16 mph ENE | 2% |
| Tuesday Night | 53°F | Partly Cloudy then Slight Chance Rain Showers | 15 to 18 mph E | 24% |
| Wednesday | 62°F | Slight Chance Rain Showers | 16 mph E | 24% |
| Wednesday Night | 54°F | Chance Rain Showers | 10 to 17 mph E | 25% |
| Thursday | 64°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph E | 20% |
| Thursday Night | 55°F | Mostly Cloudy | 7 to 12 mph ENE | 12% |
| Friday | 65°F | Mostly Sunny | 8 to 13 mph NE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Harbor Beach (43.845, -82.655). Updated through the day.
Growing snapshot for Harbor Beach
Last spring frost
May 2
First fall frost
Oct 24
Growing season
173 days
Hardiness zone
6a
More local growing data for Harbor Beach: nearby ZIP 48441 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Harbor Beach 1 Sse, Mi (4.1 mi from Harbor Beach). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.