Unionville, MI Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. Southwest wind 6 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 6 to 10 mph SW | 0% |
| Tonight | 61°F | Mostly Clear | 5 to 9 mph SSW | 0% |
| Wednesday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 12 mph SW | 19% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 9 mph W | 84% |
| Thursday | 79°F | Rain Showers | 3 to 7 mph N | 84% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 1 to 6 mph ESE | 36% |
| Friday | 84°F | Mostly Sunny | 1 to 6 mph SW | 13% |
| Friday Night | 62°F | Mostly Clear | 5 mph SSW | 13% |
| Saturday | 87°F | Sunny | 5 to 15 mph SW | 8% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 6 to 13 mph SW | 34% |
| Sunday | 87°F | Chance Rain Showers | 6 to 18 mph SW | 34% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 7 to 14 mph SW | 50% |
| Monday | 84°F | Chance Rain Showers | 10 mph WSW | 50% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 6 to 9 mph W | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Unionville, MI
Last spring frost
May 7
First fall frost
Oct 9
Growing season
154 days
Hardiness zone
6a
Explore more for Unionville, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Caro Wwtp, Mi (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.