Owosso, MI Weather & Growing Conditions
Tonight
52°F
Chance Light Rain
A chance of rain. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. East northeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Chance Light Rain | 7 mph ENE | 40% |
| Saturday | 65°F | Showers And Thunderstorms | 5 to 9 mph ESE | 81% |
| Saturday Night | 55°F | Showers And Thunderstorms | 5 to 8 mph E | 79% |
| Sunday | 67°F | Chance Rain Showers | 7 to 14 mph NE | 45% |
| Sunday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 8 to 14 mph NE | 42% |
| Monday | 63°F | Mostly Cloudy | 10 to 14 mph NE | 8% |
| Monday Night | 46°F | Mostly Cloudy | 8 to 14 mph NE | 8% |
| Tuesday | 62°F | Partly Sunny | 10 to 15 mph NE | 11% |
| Tuesday Night | 48°F | Chance Rain Showers | 9 to 14 mph ENE | 38% |
| Wednesday | 63°F | Chance Rain Showers | 12 mph ENE | 41% |
| Wednesday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 29% |
| Thursday | 66°F | Partly Sunny | 6 to 9 mph NNE | 8% |
| Thursday Night | 49°F | Mostly Cloudy | 2 to 8 mph NNE | 7% |
| Friday | 69°F | Mostly Sunny | 3 to 9 mph NNE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Owosso, MI
Last spring frost
May 1
First fall frost
Oct 15
Growing season
164 days
Hardiness zone
6a
Explore more for Owosso, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Owosso Wwtp, Mi (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.