Harbor Beach, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harbor Beach, a city in Huron County, Michigan.
Tonight
52°F
Chance Light Rain
A chance of rain before 2am. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. East northeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Harbor Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Chance Light Rain | 6 to 10 mph ENE | 40% |
| Saturday | 66°F | Slight Chance Light Rain then Chance Rain Showers | 6 to 12 mph SE | 39% |
| Saturday Night | 53°F | Chance Rain Showers | 6 to 10 mph ESE | 48% |
| Sunday | 65°F | Partly Sunny | 7 to 16 mph NE | 9% |
| Sunday Night | 52°F | Mostly Cloudy | 13 to 16 mph NE | 2% |
| Monday | 62°F | Mostly Cloudy | 14 to 17 mph NE | 1% |
| Monday Night | 52°F | Mostly Cloudy | 15 to 20 mph ENE | 3% |
| Tuesday | 62°F | Partly Sunny | 18 mph ENE | 7% |
| Tuesday Night | 54°F | Mostly Cloudy then Chance Rain Showers | 16 to 20 mph ENE | 34% |
| Wednesday | 63°F | Chance Rain Showers | 16 mph E | 44% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 38% |
| Thursday | 64°F | Slight Chance Rain Showers | 12 mph ENE | 18% |
| Thursday Night | 56°F | Mostly Cloudy | 9 mph NE | 12% |
| Friday | 66°F | Mostly Sunny | 7 to 10 mph NNE | 8% |
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.