Ortonville, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ortonville, a village in Oakland County, Michigan.
This Afternoon
71°F
Mostly Cloudy
Mostly cloudy. High near 71, with temperatures falling to around 68 in the afternoon. Northeast wind around 8 mph.
7-day forecast for Ortonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Mostly Cloudy | 8 mph NE | 0% |
| Tonight | 53°F | Mostly Cloudy then Chance Rain Showers | 3 to 9 mph ENE | 25% |
| Saturday | 64°F | Rain Showers | 5 to 8 mph ESE | 79% |
| Saturday Night | 55°F | Showers And Thunderstorms | 5 to 8 mph E | 75% |
| Sunday | 66°F | Chance Rain Showers | 6 to 12 mph NNE | 45% |
| Sunday Night | 50°F | Chance Rain Showers then Mostly Cloudy | 7 to 12 mph NE | 34% |
| Monday | 62°F | Mostly Cloudy | 12 mph NE | 7% |
| Monday Night | 47°F | Mostly Cloudy | 12 mph NE | 8% |
| Tuesday | 61°F | Partly Sunny | 14 mph ENE | 14% |
| Tuesday Night | 49°F | Chance Rain Showers | 13 mph ENE | 45% |
| Wednesday | 61°F | Chance Rain Showers | 13 mph ENE | 46% |
| Wednesday Night | 50°F | Chance Rain Showers | 6 to 10 mph ENE | 46% |
| Thursday | 64°F | Partly Sunny then Slight Chance Rain Showers | 9 mph NE | 15% |
| Thursday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 7 mph NNE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Ortonville (42.848, -83.438). Updated through the day.
Growing snapshot for Ortonville
Last spring frost
May 1
First fall frost
Oct 14
Growing season
164 days
Hardiness zone
6a
More local growing data for Ortonville: nearby ZIP 48462 weather · frost dates · planting calendar · Michigan frost dates
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Climate data from the nearest NOAA station, Goodrich, Mi (6.5 mi from Ortonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.