Harbor Beach, MI Weather & Growing Conditions
Tonight
58°F
Mostly Cloudy
Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Cloudy | 10 mph S | 3% |
| Wednesday | 68°F | Light Rain | 9 to 17 mph S | 83% |
| Wednesday Night | 50°F | Light Rain Likely then Mostly Cloudy | 8 to 16 mph SSW | 59% |
| Thursday | 59°F | Mostly Cloudy then Chance Light Rain | 9 to 15 mph SW | 29% |
| Thursday Night | 43°F | Chance Light Rain | 5 to 9 mph W | 52% |
| Friday | 52°F | Light Rain Likely | 5 to 14 mph NNW | 62% |
| Friday Night | 38°F | Light Rain Likely | 8 to 13 mph N | 55% |
| Saturday | 50°F | Chance Light Rain | 12 mph NW | 37% |
| Saturday Night | 33°F | Partly Cloudy | 7 mph W | 9% |
| Sunday | 53°F | Mostly Sunny then Slight Chance Light Rain | 7 to 12 mph W | 15% |
| Sunday Night | 34°F | Slight Chance Light Rain then Partly Cloudy | 10 mph WNW | 15% |
| Monday | 54°F | Partly Sunny then Slight Chance Light Rain | 8 to 14 mph W | 15% |
| Monday Night | 37°F | Slight Chance Light Rain then Partly Cloudy | 12 mph WSW | 15% |
| Tuesday | 55°F | Mostly Sunny | 10 to 15 mph W | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harbor Beach, MI
Last spring frost
May 2
First fall frost
Oct 24
Growing season
173 days
Hardiness zone
6a
Explore more for Harbor Beach, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Harbor Beach 1 Sse, Mi (4.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.