Harrietta, MI Weather & Growing Conditions
Today
68°F
Rain Showers Likely
Rain showers likely. Mostly cloudy. High near 68, with temperatures falling to around 62 in the afternoon. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Rain Showers Likely | 10 mph S | 57% |
| Tonight | 44°F | Chance Rain Showers | 10 mph SW | 49% |
| Thursday | 54°F | Rain Showers Likely | 10 mph W | 63% |
| Thursday Night | 36°F | Rain Showers Likely | 10 mph NW | 71% |
| Friday | 47°F | Rain Showers Likely | 10 mph N | 58% |
| Friday Night | 30°F | Chance Rain And Snow Showers | 5 to 10 mph N | 49% |
| Saturday | 50°F | Slight Chance Rain Showers then Mostly Sunny | 5 mph NW | 17% |
| Saturday Night | 29°F | Partly Cloudy | 0 to 5 mph W | 5% |
| Sunday | 53°F | Mostly Sunny | 5 to 10 mph W | 14% |
| Sunday Night | 31°F | Partly Cloudy | 5 mph W | 14% |
| Monday | 56°F | Mostly Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 37°F | Partly Cloudy | 5 to 10 mph W | 5% |
| Tuesday | 57°F | Slight Chance Rain Showers | 5 to 10 mph NW | 15% |
| Tuesday Night | 32°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph NW | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harrietta, MI
Last spring frost
May 28
First fall frost
Sep 25
Growing season
119 days
Hardiness zone
5b
Explore more for Harrietta, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Wellston 1N, Mi (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.