Sandusky, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sandusky, a city in Sanilac County, Michigan.
Today
86°F
Sunny
Sunny, with a high near 86. South southwest wind 5 to 10 mph.
7-day forecast for Sandusky
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 to 10 mph SSW | 0% |
| Tonight | 59°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Wednesday | 87°F | Sunny | 3 to 8 mph SSW | 1% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 2 to 7 mph W | 70% |
| Thursday | 80°F | Rain Showers | 3 to 7 mph WNW | 79% |
| Thursday Night | 60°F | Showers And Thunderstorms Likely | 1 to 6 mph ENE | 63% |
| Friday | 84°F | Chance Showers And Thunderstorms | 1 to 6 mph SSW | 30% |
| Friday Night | 61°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph S | 30% |
| Saturday | 87°F | Sunny | 3 to 10 mph SW | 10% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 29% |
| Sunday | 88°F | Chance Rain Showers | 5 to 15 mph SW | 31% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 7 to 13 mph WSW | 45% |
| Monday | 84°F | Chance Rain Showers | 9 mph W | 45% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 5 to 8 mph W | 50% |
Forecast source: National Weather Service (api.weather.gov) for Sandusky (43.420, -82.833). Updated through the day.
Growing snapshot for Sandusky
Last spring frost
May 2
First fall frost
Oct 16
Growing season
165 days
Hardiness zone
6a
More local growing data for Sandusky: nearby ZIP 48471 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Applegate
Brown City
Carsonville
Croswell
Deckerville
Forestville
Lexington
Marlette
Melvin
Minden City
Peck
Port Sanilac
Snover
Ubly
Climate data from the nearest NOAA station, Sandusky, Mi (1.7 mi from Sandusky). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.