Ortonville, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ortonville, a village in Oakland County, Michigan.
Today
66°F
Light Rain
Rain. Cloudy. High near 66, with temperatures falling to around 64 in the afternoon. South wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Ortonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Light Rain | 14 mph S | 90% |
| Tonight | 49°F | Light Rain Likely then Mostly Cloudy | 8 to 14 mph SSW | 75% |
| Thursday | 58°F | Mostly Cloudy then Slight Chance Light Rain | 9 to 14 mph SW | 8% |
| Thursday Night | 41°F | Light Rain Likely | 9 mph W | 59% |
| Friday | 50°F | Light Rain Likely | 10 mph WNW | 67% |
| Friday Night | 34°F | Light Rain Likely | 12 mph NW | 67% |
| Saturday | 49°F | Slight Chance Light Rain then Mostly Cloudy | 8 to 12 mph NW | 26% |
| Saturday Night | 30°F | Partly Cloudy | 6 mph WNW | 3% |
| Sunday | 54°F | Sunny | 6 to 13 mph W | 6% |
| Sunday Night | 32°F | Mostly Clear | 6 to 10 mph WNW | 6% |
| Monday | 56°F | Mostly Sunny | 6 to 10 mph W | 3% |
| Monday Night | 37°F | Mostly Clear | 10 mph WSW | 4% |
| Tuesday | 59°F | Mostly Sunny | 10 mph W | 15% |
| Tuesday Night | 33°F | Partly Cloudy | 2 to 7 mph WNW | 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 Nov 4, 2026.