Croswell, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Croswell, a city in Sanilac County, Michigan.
This Afternoon
67°F
Mostly Cloudy
Mostly cloudy. High near 67, with temperatures falling to around 63 in the afternoon. North northeast wind around 13 mph, with gusts as high as 22 mph.
7-day forecast for Croswell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Mostly Cloudy | 13 mph NNE | 1% |
| Tonight | 53°F | Mostly Cloudy | 5 to 13 mph ENE | 8% |
| Saturday | 66°F | Chance Rain Showers | 5 to 9 mph ESE | 53% |
| Saturday Night | 54°F | Rain Showers Likely | 5 to 9 mph E | 69% |
| Sunday | 66°F | Chance Rain Showers | 6 to 15 mph NE | 32% |
| Sunday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 20% |
| Monday | 63°F | Mostly Cloudy | 14 mph NE | 2% |
| Monday Night | 49°F | Mostly Cloudy | 14 mph ENE | 6% |
| Tuesday | 63°F | Partly Sunny then Slight Chance Rain Showers | 16 mph ENE | 17% |
| Tuesday Night | 50°F | Chance Rain Showers | 13 to 16 mph ENE | 44% |
| Wednesday | 62°F | Chance Rain Showers | 14 mph E | 45% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 7 to 13 mph E | 45% |
| Thursday | 65°F | Slight Chance Showers And Thunderstorms | 7 to 10 mph ENE | 20% |
| Thursday Night | 51°F | Mostly Cloudy | 5 to 9 mph NE | 14% |
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 Sep 18, 2026.