Troy, MI Weather & Growing Conditions
Tonight
56°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 56. Northeast wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph NE | 17% |
| Saturday | 68°F | Rain Showers | 5 to 9 mph E | 82% |
| Saturday Night | 58°F | Showers And Thunderstorms | 5 to 8 mph E | 77% |
| Sunday | 67°F | Chance Rain Showers | 6 to 13 mph NNE | 53% |
| Sunday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 12 mph NE | 44% |
| Monday | 64°F | Mostly Cloudy | 13 mph NE | 12% |
| Monday Night | 50°F | Mostly Cloudy | 14 mph NE | 11% |
| Tuesday | 63°F | Slight Chance Rain Showers | 15 mph NE | 17% |
| Tuesday Night | 52°F | Chance Rain Showers | 14 mph NE | 49% |
| Wednesday | 62°F | Chance Rain Showers | 14 mph ENE | 50% |
| Wednesday Night | 53°F | Chance Rain Showers | 7 to 10 mph NE | 50% |
| Thursday | 66°F | Slight Chance Rain Showers then Partly Sunny | 9 mph NE | 17% |
| Thursday Night | 53°F | Mostly Cloudy | 5 to 8 mph NNE | 12% |
| Friday | 69°F | Mostly Sunny | 5 to 8 mph NNE | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Troy, MI
Last spring frost
Apr 26
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6b
Explore more for Troy, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Pontiac Wwtp, Mi (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.