Union City, MI Weather & Growing Conditions
Today
83°F
Sunny
Sunny, with a high near 83. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 5 mph SW | 0% |
| Tonight | 58°F | Mostly Clear | 5 mph S | 0% |
| Wednesday | 83°F | Mostly Sunny | 5 mph SW | 13% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph SW | 75% |
| Thursday | 80°F | Showers And Thunderstorms | 0 to 5 mph SW | 75% |
| Thursday Night | 61°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SW | 69% |
| Friday | 82°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 24% |
| Friday Night | 61°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 24% |
| Saturday | 84°F | Mostly Sunny | 0 to 10 mph SW | 11% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 25% |
| Sunday | 86°F | Chance Rain Showers | 5 to 15 mph SW | 25% |
| Sunday Night | 66°F | Chance Rain Showers | 5 to 15 mph SW | 40% |
| Monday | 85°F | Chance Rain Showers | 5 to 10 mph SW | 40% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union City, MI
Last spring frost
May 2
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
6a
Explore more for Union City, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Coldwater St School, Mi (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.