Whitmore Lake, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whitmore Lake, a community in Washtenaw County, Michigan.
Overnight
59°F
Rain Showers Likely
Rain showers likely and patchy fog. Mostly cloudy, with a low around 59. East northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Whitmore Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Rain Showers Likely | 5 mph ENE | 74% |
| Sunday | 68°F | Rain Showers | 6 to 12 mph NE | 88% |
| Sunday Night | 51°F | Mostly Cloudy | 12 mph NE | 10% |
| Monday | 63°F | Partly Sunny | 14 mph NE | 6% |
| Monday Night | 48°F | Mostly Cloudy | 12 mph NE | 6% |
| Tuesday | 61°F | Mostly Cloudy then Slight Chance Rain Showers | 15 mph NE | 16% |
| Tuesday Night | 50°F | Chance Rain Showers | 15 mph ENE | 36% |
| Wednesday | 60°F | Chance Rain Showers | 16 mph ENE | 52% |
| Wednesday Night | 51°F | Chance Rain Showers | 9 to 14 mph ENE | 52% |
| Thursday | 64°F | Slight Chance Rain Showers then Partly Sunny | 10 mph E | 15% |
| Thursday Night | 50°F | Mostly Cloudy | 5 to 8 mph ENE | 9% |
| Friday | 68°F | Mostly Sunny | 8 mph NE | 9% |
| Friday Night | 49°F | Partly Cloudy | 3 to 7 mph NNE | 4% |
| Saturday | 70°F | Mostly Sunny | 7 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Whitmore Lake (42.420, -83.752). Updated through the day.
Growing snapshot for Whitmore Lake
Last spring frost
May 5
First fall frost
Oct 13
Growing season
160 days
Hardiness zone
6a
More local growing data for Whitmore Lake: nearby ZIP 48189 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Whitmore Lake 1Nw, Mi (1.8 mi from Whitmore Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.