Croswell, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Croswell, a city in Sanilac County, Michigan.
Overnight
59°F
Mostly Cloudy
Mostly cloudy. Low around 59, with temperatures rising to around 61 overnight. South wind around 9 mph, with gusts as high as 21 mph.
7-day forecast for Croswell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Mostly Cloudy | 9 mph S | 2% |
| Wednesday | 67°F | Light Rain | 10 to 17 mph S | 96% |
| Wednesday Night | 49°F | Chance Light Rain then Mostly Cloudy | 7 to 17 mph SSW | 44% |
| Thursday | 59°F | Mostly Cloudy then Slight Chance Light Rain | 9 to 15 mph SW | 16% |
| Thursday Night | 41°F | Chance Light Rain | 3 to 9 mph W | 54% |
| Friday | 52°F | Light Rain | 5 to 12 mph NW | 76% |
| Friday Night | 35°F | Light Rain Likely | 10 mph NNW | 65% |
| Saturday | 50°F | Chance Light Rain | 9 to 14 mph NW | 47% |
| Saturday Night | 29°F | Slight Chance Light Rain then Mostly Cloudy | 7 mph WNW | 15% |
| Sunday | 54°F | Mostly Sunny | 7 to 14 mph W | 8% |
| Sunday Night | 30°F | Partly Cloudy | 7 to 12 mph W | 8% |
| Monday | 56°F | Mostly Sunny | 7 to 12 mph W | 3% |
| Monday Night | 35°F | Partly Cloudy | 9 mph WSW | 6% |
| Tuesday | 58°F | Mostly Sunny | 9 to 13 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.