Croswell, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Croswell, a city in Sanilac County, Michigan.
Today
85°F
Sunny
Sunny, with a high near 85. South southwest wind 6 to 9 mph.
7-day forecast for Croswell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 6 to 9 mph SSW | 0% |
| Tonight | 59°F | Mostly Clear | 5 to 9 mph SSW | 0% |
| Wednesday | 87°F | Sunny | 3 to 8 mph SSW | 0% |
| Wednesday Night | 64°F | Mostly Cloudy then Chance Showers And Thunderstorms | 3 to 7 mph SW | 50% |
| Thursday | 81°F | Rain Showers | 3 to 7 mph W | 78% |
| Thursday Night | 62°F | Showers And Thunderstorms Likely | 1 to 6 mph N | 71% |
| Friday | 84°F | Chance Showers And Thunderstorms | 2 to 6 mph SSW | 39% |
| Friday Night | 62°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph S | 39% |
| Saturday | 88°F | Sunny | 3 to 9 mph SW | 11% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 31% |
| Sunday | 89°F | Chance Rain Showers | 5 to 14 mph SW | 31% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 7 to 12 mph WSW | 46% |
| Monday | 85°F | Chance Rain Showers | 9 mph WSW | 46% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 8 mph WSW | 49% |
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 Aug 4, 2026.