Whitmore Lake, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whitmore Lake, a community in Washtenaw County, Michigan.
This Afternoon
66°F
Showers And Thunderstorms Likely
Rain showers likely before 2pm, then showers and thunderstorms likely between 2pm and 4pm, then patchy fog and a chance of showers and thunderstorms. Cloudy. High near 66, with temperatures falling to around 64 in the afternoon. East southeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Whitmore Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Showers And Thunderstorms Likely | 9 mph ESE | 72% |
| Tonight | 59°F | Patchy Fog | 5 to 8 mph ESE | 95% |
| Sunday | 69°F | Chance Rain Showers | 6 to 13 mph NNE | 47% |
| Sunday Night | 51°F | Mostly Cloudy | 13 mph NE | 3% |
| Monday | 62°F | Mostly Cloudy | 14 mph NE | 3% |
| Monday Night | 48°F | Mostly Cloudy | 13 mph NE | 6% |
| Tuesday | 62°F | Partly Sunny | 16 mph NE | 12% |
| Tuesday Night | 50°F | Chance Rain Showers | 16 mph ENE | 42% |
| Wednesday | 61°F | Chance Rain Showers | 13 to 17 mph ENE | 53% |
| Wednesday Night | 50°F | Chance Rain Showers | 8 to 13 mph ENE | 50% |
| Thursday | 65°F | Slight Chance Rain Showers then Partly Sunny | 10 mph NE | 16% |
| Thursday Night | 50°F | Mostly Cloudy | 6 to 9 mph NE | 13% |
| Friday | 69°F | Mostly Sunny | 6 to 10 mph NNE | 7% |
| Friday Night | 49°F | Partly Cloudy | 5 to 8 mph NE | 6% |
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 19, 2026.