Flat Rock, MI Weather & Growing Conditions
Today
82°F
Sunny
Sunny, with a high near 82. South southwest wind 2 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 2 to 8 mph SSW | 0% |
| Tonight | 60°F | Mostly Clear | 1 to 7 mph S | 0% |
| Wednesday | 86°F | Sunny | 1 to 8 mph SW | 0% |
| Wednesday Night | 66°F | Partly Cloudy | 3 to 7 mph SW | 12% |
| Thursday | 83°F | Showers And Thunderstorms Likely | 3 to 8 mph WSW | 60% |
| Thursday Night | 64°F | Showers And Thunderstorms Likely | 2 to 8 mph WSW | 60% |
| Friday | 84°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph SW | 55% |
| Friday Night | 64°F | Chance Showers And Thunderstorms | 6 mph SW | 43% |
| Saturday | 86°F | Mostly Sunny | 3 to 10 mph SW | 8% |
| Saturday Night | 66°F | Mostly Clear then Slight Chance Rain Showers | 5 to 10 mph SW | 20% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 14 mph SW | 20% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 8 to 14 mph SW | 44% |
| Monday | 86°F | Chance Rain Showers | 10 mph WSW | 44% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 9 mph WSW | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Flat Rock, MI
Last spring frost
Apr 27
First fall frost
Oct 20
Growing season
176 days
Hardiness zone
6b
Explore more for Flat Rock, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Carleton 2W, Mi (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.