Marlette, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marlette, a city in Sanilac County, Michigan.
This Afternoon
69°F
Mostly Cloudy
Mostly cloudy. High near 69, with temperatures falling to around 65 in the afternoon. Northeast wind around 10 mph, with gusts as high as 21 mph.
7-day forecast for Marlette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Cloudy | 10 mph NE | 0% |
| Tonight | 49°F | Mostly Cloudy | 3 to 10 mph ENE | 12% |
| Saturday | 65°F | Rain Showers Likely | 3 to 8 mph ESE | 60% |
| Saturday Night | 52°F | Showers And Thunderstorms Likely | 3 to 8 mph ESE | 71% |
| Sunday | 66°F | Chance Rain Showers | 6 to 13 mph NE | 29% |
| Sunday Night | 49°F | Mostly Cloudy | 7 to 12 mph NE | 14% |
| Monday | 62°F | Mostly Cloudy | 9 to 14 mph NE | 2% |
| Monday Night | 46°F | Mostly Cloudy | 7 to 13 mph NE | 5% |
| Tuesday | 62°F | Partly Sunny | 10 to 15 mph ENE | 8% |
| Tuesday Night | 48°F | Chance Rain Showers | 9 to 14 mph ENE | 40% |
| Wednesday | 62°F | Chance Rain Showers | 13 mph ENE | 42% |
| Wednesday Night | 48°F | Chance Rain Showers | 5 to 10 mph ENE | 38% |
| Thursday | 65°F | Slight Chance Rain Showers | 5 to 9 mph NE | 17% |
| Thursday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 8 mph NNE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Marlette (43.326, -83.081). Updated through the day.
Growing snapshot for Marlette
Last spring frost
May 2
First fall frost
Oct 16
Growing season
165 days
Hardiness zone
6a
More local growing data for Marlette: nearby ZIP 48453 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Applegate
Brown City
Carsonville
Croswell
Deckerville
Forestville
Lexington
Melvin
Minden City
Peck
Port Sanilac
Sandusky
Snover
Ubly
Climate data from the nearest NOAA station, Sandusky, Mi (11.8 mi from Marlette). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.