South Monroe, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Monroe, a community in Monroe County, Michigan.
Overnight
58°F
Slight Chance Rain Showers
A slight chance of rain showers after 5am. Mostly cloudy. Low around 58, with temperatures rising to around 60 overnight. Northeast wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for South Monroe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Slight Chance Rain Showers | 6 mph NE | 20% |
| Saturday | 71°F | Rain Showers | 5 to 9 mph E | 76% |
| Saturday Night | 61°F | Showers And Thunderstorms Likely | 5 to 9 mph SE | 72% |
| Sunday | 70°F | Showers And Thunderstorms | 7 to 13 mph NNW | 77% |
| Sunday Night | 53°F | Mostly Cloudy | 14 mph NE | 11% |
| Monday | 64°F | Mostly Cloudy | 13 to 16 mph NE | 10% |
| Monday Night | 51°F | Mostly Cloudy | 15 mph NE | 14% |
| Tuesday | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 16 to 20 mph NE | 21% |
| Tuesday Night | 52°F | Chance Rain Showers | 18 mph ENE | 51% |
| Wednesday | 63°F | Rain Showers Likely | 18 mph ENE | 58% |
| Wednesday Night | 52°F | Rain Showers Likely | 9 to 16 mph ENE | 58% |
| Thursday | 65°F | Slight Chance Rain Showers | 13 mph ENE | 21% |
| Thursday Night | 52°F | Mostly Cloudy | 6 to 12 mph NE | 13% |
| Friday | 68°F | Mostly Sunny | 8 to 12 mph NE | 11% |
Forecast source: National Weather Service (api.weather.gov) for South Monroe (41.893, -83.419). Updated through the day.
Growing snapshot for South Monroe
Last spring frost
Apr 23
First fall frost
Oct 23
Growing season
182 days
Hardiness zone
6b
More local growing data for South Monroe: nearby ZIP 48161 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Carleton
Detroit Beach
Dundee
Estral Beach
Ida
Lambertville
Luna Pier
Maybee
Milan
Monroe
Petersburg
South Rockwood
Stony Point
Temperance
West Monroe
Woodland Beach
Climate data from the nearest NOAA station, Monroe, Mi (2.9 mi from South Monroe). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.