Harrison, MI Weather & Growing Conditions
Tonight
44°F
Chance Rain Showers
A chance of rain showers after 8pm. Mostly cloudy. Low around 44, with temperatures rising to around 46 overnight. East wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Chance Rain Showers | 7 mph E | 47% |
| Saturday | 62°F | Chance Rain Showers | 5 to 8 mph ESE | 50% |
| Saturday Night | 49°F | Chance Rain Showers | 3 to 8 mph ENE | 43% |
| Sunday | 67°F | Chance Rain Showers then Partly Sunny | 6 to 10 mph NE | 25% |
| Sunday Night | 43°F | Mostly Cloudy | 9 mph NE | 1% |
| Monday | 60°F | Mostly Cloudy | 12 mph ENE | 1% |
| Monday Night | 40°F | Mostly Cloudy | 7 to 10 mph ENE | 3% |
| Tuesday | 61°F | Partly Sunny | 9 to 14 mph ENE | 8% |
| Tuesday Night | 42°F | Partly Cloudy then Slight Chance Rain Showers | 8 to 13 mph ENE | 16% |
| Wednesday | 62°F | Chance Rain Showers | 10 mph ENE | 27% |
| Wednesday Night | 43°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 9 mph NE | 24% |
| Thursday | 66°F | Partly Sunny | 5 to 8 mph NE | 6% |
| Thursday Night | 44°F | Partly Cloudy | 2 to 6 mph NNE | 6% |
| Friday | 70°F | Mostly Sunny | 2 to 7 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harrison, MI
Last spring frost
May 9
First fall frost
Oct 4
Growing season
148 days
Hardiness zone
5a
Explore more for Harrison, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Gladwin, Mi (18 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.