Monroe, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monroe, a city in Monroe County, Michigan.
Tonight
62°F
Cloudy then Patchy Fog
A slight chance of rain showers between midnight and 1am, then a chance of rain showers and patchy fog between 1am and 5am, then patchy fog and a chance of showers and thunderstorms. Cloudy, with a low around 62. Northeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Monroe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Cloudy then Patchy Fog | 6 mph NE | 46% |
| Sunday | 69°F | Patchy Fog | 6 to 13 mph NNE | 89% |
| Sunday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 13 mph NE | 32% |
| Monday | 65°F | Mostly Cloudy | 13 to 17 mph NE | 11% |
| Monday Night | 52°F | Mostly Cloudy | 16 mph NE | 9% |
| Tuesday | 63°F | Chance Showers And Thunderstorms | 15 to 18 mph NE | 42% |
| Tuesday Night | 53°F | Showers And Thunderstorms Likely | 15 to 18 mph ENE | 59% |
| Wednesday | 63°F | Rain Showers Likely | 18 mph ENE | 64% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 12 to 17 mph E | 64% |
| Thursday | 64°F | Chance Rain Showers | 14 mph E | 29% |
| Thursday Night | 52°F | Mostly Cloudy | 6 to 12 mph NE | 11% |
| Friday | 68°F | Mostly Sunny | 7 to 10 mph NE | 11% |
| Friday Night | 52°F | Partly Cloudy | 5 to 8 mph NNE | 4% |
| Saturday | 70°F | Mostly Sunny | 8 mph NE | 4% |
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 20, 2026.