Monroe, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monroe, a city in Monroe County, Michigan.
Tonight
58°F
Mostly Cloudy then Slight Chance Light Rain
A slight chance of rain after 1am. Mostly cloudy. Low around 58, with temperatures rising to around 60 overnight. East northeast wind 6 to 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Monroe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 9 mph ENE | 22% |
| Saturday | 70°F | Rain Showers | 6 to 10 mph E | 86% |
| Saturday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph ESE | 92% |
| Sunday | 69°F | Showers And Thunderstorms Likely | 6 to 14 mph NNW | 69% |
| Sunday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 14 mph NE | 47% |
| Monday | 65°F | Slight Chance Rain Showers | 14 to 17 mph NE | 23% |
| Monday Night | 52°F | Slight Chance Rain Showers | 17 mph NE | 16% |
| Tuesday | 64°F | Slight Chance Rain Showers | 18 mph NE | 23% |
| Tuesday Night | 53°F | Chance Rain Showers | 17 mph NE | 51% |
| Wednesday | 64°F | Chance Rain Showers | 16 mph ENE | 54% |
| Wednesday Night | 53°F | Chance Rain Showers | 9 to 14 mph NE | 54% |
| Thursday | 66°F | Slight Chance Rain Showers then Mostly Cloudy | 13 mph NE | 15% |
| Thursday Night | 53°F | Mostly Cloudy | 6 to 10 mph NNE | 9% |
| Friday | 68°F | Partly Sunny | 7 to 10 mph NNE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Monroe (41.917, -83.384). Updated through the day.
Growing snapshot for Monroe
Last spring frost
Apr 23
First fall frost
Oct 23
Growing season
182 days
Hardiness zone
6b
More local growing data for Monroe: nearby ZIP 48162 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Carleton
Detroit Beach
Dundee
Estral Beach
Ida
Lambertville
Luna Pier
Maybee
Milan
Petersburg
South Monroe
South Rockwood
Stony Point
Temperance
West Monroe
Woodland Beach
Climate data from the nearest NOAA station, Monroe, Mi (3.8 mi from Monroe). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.