Plymouth, MI Weather & Growing Conditions
Tonight
55°F
Mostly Cloudy then Chance Light Rain
A chance of rain after midnight. Mostly cloudy. Low around 55, with temperatures rising to around 57 overnight. East northeast wind 6 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Cloudy then Chance Light Rain | 6 to 10 mph ENE | 31% |
| Saturday | 67°F | Rain Showers | 6 to 10 mph E | 87% |
| Saturday Night | 58°F | Showers And Thunderstorms | 6 to 10 mph E | 77% |
| Sunday | 67°F | Rain Showers Likely | 8 to 14 mph NNE | 60% |
| Sunday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 14 mph NE | 48% |
| Monday | 63°F | Slight Chance Rain Showers | 15 mph NE | 18% |
| Monday Night | 49°F | Mostly Cloudy | 13 to 16 mph NE | 12% |
| Tuesday | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 17 mph NE | 15% |
| Tuesday Night | 51°F | Chance Rain Showers | 16 mph NE | 47% |
| Wednesday | 62°F | Chance Rain Showers | 13 to 16 mph ENE | 47% |
| Wednesday Night | 52°F | Chance Rain Showers | 12 mph NE | 46% |
| Thursday | 65°F | Partly Sunny | 12 mph NNE | 11% |
| Thursday Night | 51°F | Mostly Cloudy | 6 to 9 mph NNE | 11% |
| Friday | 68°F | Mostly Sunny | 9 mph NNE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plymouth, MI
Last spring frost
May 3
First fall frost
Oct 13
Growing season
160 days
Hardiness zone
6a
Explore more for Plymouth, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Ann Arbor U Of Mich, Mi (8.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.