Harrison, MI Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. Southwest wind 3 to 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 3 to 10 mph SW | 0% |
| Tonight | 60°F | Partly Cloudy then Slight Chance Rain Showers | 3 to 8 mph SW | 19% |
| Wednesday | 79°F | Showers And Thunderstorms | 3 to 7 mph WSW | 78% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 5 mph WNW | 69% |
| Thursday | 79°F | Rain Showers Likely | 3 mph N | 69% |
| Thursday Night | 53°F | Chance Rain Showers then Partly Cloudy | 0 to 3 mph S | 39% |
| Friday | 84°F | Mostly Sunny | 0 to 6 mph SW | 4% |
| Friday Night | 57°F | Mostly Clear | 2 to 6 mph WSW | 4% |
| Saturday | 86°F | Sunny | 3 to 10 mph WSW | 9% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 34% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 5 to 12 mph SW | 34% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 3 to 10 mph WSW | 52% |
| Monday | 83°F | Chance Rain Showers | 3 to 7 mph W | 52% |
| Monday Night | 57°F | Chance Rain Showers | 2 to 7 mph NW | 45% |
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 (22.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.