Sandusky, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sandusky, a city in Sanilac County, Michigan.
This Afternoon
75°F
Mostly Sunny
Mostly sunny. High near 75, with temperatures falling to around 71 in the afternoon. South southwest wind around 15 mph, with gusts as high as 26 mph.
7-day forecast for Sandusky
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 15 mph SSW | 2% |
| Tonight | 59°F | Mostly Cloudy | 9 to 13 mph S | 3% |
| Wednesday | 69°F | Light Rain | 10 to 17 mph S | 87% |
| Wednesday Night | 50°F | Light Rain Likely then Mostly Cloudy | 8 to 17 mph SSW | 62% |
| Thursday | 60°F | Mostly Cloudy then Slight Chance Light Rain | 9 to 16 mph SW | 22% |
| Thursday Night | 43°F | Chance Light Rain | 3 to 9 mph W | 45% |
| Friday | 53°F | Light Rain Likely | 3 to 12 mph NNW | 57% |
| Friday Night | 37°F | Chance Light Rain | 7 to 10 mph NNW | 50% |
| Saturday | 51°F | Chance Light Rain then Partly Sunny | 8 to 12 mph NW | 35% |
| Saturday Night | 30°F | Partly Cloudy | 3 to 7 mph W | 7% |
| Sunday | 55°F | Mostly Sunny | 5 to 12 mph W | 14% |
| Sunday Night | 31°F | Partly Cloudy | 6 to 9 mph WNW | 14% |
| Monday | 56°F | Partly Sunny | 7 to 13 mph W | 13% |
| Monday Night | 36°F | Partly Cloudy | 10 mph WSW | 11% |
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 Nov 3, 2026.