Harrietta, MI Weather & Growing Conditions
Overnight
47°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 47, with temperatures rising to around 50 overnight. Southeast wind around 5 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 |
|---|---|---|---|---|
| Overnight | 47°F | Chance Rain Showers | 5 mph SE | 48% |
| Saturday | 63°F | Rain Showers Likely | 5 to 10 mph SE | 57% |
| Saturday Night | 50°F | Chance Rain Showers | 5 mph E | 46% |
| Sunday | 69°F | Chance Rain Showers then Partly Sunny | 5 to 10 mph NE | 25% |
| Sunday Night | 44°F | Partly Cloudy | 5 to 10 mph NE | 2% |
| Monday | 63°F | Mostly Cloudy | 5 to 10 mph NE | 1% |
| Monday Night | 41°F | Mostly Cloudy | 5 mph E | 1% |
| Tuesday | 66°F | Mostly Sunny | 5 to 10 mph E | 1% |
| Tuesday Night | 43°F | Partly Cloudy | 5 to 10 mph E | 7% |
| Wednesday | 66°F | Mostly Sunny | 5 to 10 mph E | 13% |
| Wednesday Night | 45°F | Mostly Cloudy | 5 mph E | 13% |
| Thursday | 69°F | Partly Sunny | 5 mph NE | 3% |
| Thursday Night | 45°F | Mostly Cloudy | 0 to 5 mph NE | 2% |
| Friday | 72°F | Mostly Sunny | 5 mph NE | 3% |
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 Sep 19, 2026.