Croswell, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Croswell, a city in Sanilac County, Michigan.
Tonight
59°F
Mostly Cloudy
Mostly cloudy, with a low around 59. South wind around 10 mph, with gusts as high as 22 mph.
7-day forecast for Croswell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Mostly Cloudy | 10 mph S | 3% |
| Wednesday | 67°F | Light Rain | 10 to 17 mph S | 93% |
| Wednesday Night | 50°F | Light Rain Likely then Mostly Cloudy | 7 to 17 mph SSW | 72% |
| Thursday | 61°F | Mostly Cloudy | 9 to 15 mph SW | 13% |
| Thursday Night | 44°F | Chance Light Rain | 3 to 9 mph W | 41% |
| Friday | 54°F | Chance Light Rain | 5 to 12 mph NW | 53% |
| Friday Night | 38°F | Chance Light Rain | 10 mph NNW | 52% |
| Saturday | 51°F | Chance Light Rain then Partly Sunny | 12 mph NW | 37% |
| Saturday Night | 31°F | Partly Cloudy | 7 mph W | 8% |
| Sunday | 55°F | Mostly Sunny | 7 to 12 mph W | 14% |
| Sunday Night | 32°F | Partly Cloudy | 9 mph WNW | 14% |
| Monday | 56°F | Mostly Sunny | 7 to 13 mph W | 13% |
| Monday Night | 36°F | Partly Cloudy | 10 mph WSW | 12% |
| Tuesday | 57°F | Mostly Sunny | 9 to 14 mph W | 7% |
Forecast source: National Weather Service (api.weather.gov) for Croswell (43.273, -82.617). Updated through the day.
Growing snapshot for Croswell
Last spring frost
May 4
First fall frost
Oct 24
Growing season
171 days
Hardiness zone
6a
More local growing data for Croswell: nearby ZIP 48422 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Applegate
Brown City
Carsonville
Deckerville
Forestville
Lexington
Marlette
Melvin
Minden City
Peck
Port Sanilac
Sandusky
Snover
Ubly
Climate data from the nearest NOAA station, Lexington Wtp, Mi (6.1 mi from Croswell). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.