Marine City, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marine City, a city in St. Clair County, Michigan.
This Afternoon
67°F
Light Rain
Rain. Cloudy. High near 67, with temperatures falling to around 64 in the afternoon. South wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Marine City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Light Rain | 16 mph S | 99% |
| Tonight | 52°F | Light Rain Likely then Mostly Cloudy | 8 to 16 mph SSW | 51% |
| Thursday | 60°F | Mostly Cloudy | 9 to 15 mph SW | 7% |
| Thursday Night | 44°F | Light Rain Likely | 6 to 9 mph WSW | 41% |
| Friday | 55°F | Light Rain Likely | 8 to 12 mph WNW | 61% |
| Friday Night | 36°F | Light Rain Likely | 9 to 14 mph NW | 50% |
| Saturday | 51°F | Chance Light Rain | 9 to 14 mph NW | 33% |
| Saturday Night | 32°F | Partly Cloudy | 3 to 7 mph WNW | 7% |
| Sunday | 55°F | Mostly Sunny | 5 to 12 mph W | 6% |
| Sunday Night | 32°F | Partly Cloudy | 6 to 9 mph W | 6% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph W | 4% |
| Monday Night | 37°F | Partly Cloudy | 8 mph WSW | 5% |
| Tuesday | 60°F | Mostly Sunny | 7 to 10 mph W | 6% |
| Tuesday Night | 34°F | Partly Cloudy | 6 mph WNW | 8% |
Forecast source: National Weather Service (api.weather.gov) for Marine City (42.714, -82.503). Updated through the day.
Growing snapshot for Marine City
Last spring frost
May 3
First fall frost
Oct 18
Growing season
167 days
Hardiness zone
6b
More local growing data for Marine City: nearby ZIP 48039 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Algonac Wwtp, Mi (5.3 mi from Marine City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.