Harrietta, MI Weather & Growing Conditions
Today
84°F
Mostly Sunny
Mostly sunny. High near 84, with temperatures falling to around 82 in the afternoon. Southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 10 mph SW | 0% |
| Tonight | 63°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 56% |
| Wednesday | 78°F | Showers And Thunderstorms Likely | 5 mph W | 56% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 30% |
| Thursday | 80°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 24% |
| Thursday Night | 55°F | Mostly Clear | 0 to 5 mph S | 13% |
| Friday | 84°F | Sunny | 0 to 5 mph SW | 3% |
| Friday Night | 60°F | Mostly Clear | 5 mph SW | 6% |
| Saturday | 83°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 63°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 38% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 38% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 5 to 10 mph SW | 59% |
| Monday | 81°F | Chance Rain Showers | 5 mph W | 40% |
| Monday Night | 59°F | Chance Rain Showers | 5 mph NW | 44% |
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 Aug 4, 2026.