Romulus, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Romulus, a city in Wayne County, Michigan.
This Afternoon
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 72 in the afternoon. South wind around 14 mph, with gusts as high as 24 mph.
7-day forecast for Romulus
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Sunny | 14 mph S | 2% |
| Tonight | 62°F | Partly Cloudy | 12 mph SSE | 12% |
| Wednesday | 68°F | Light Rain | 13 to 17 mph S | 99% |
| Wednesday Night | 52°F | Light Rain Likely then Mostly Cloudy | 10 to 15 mph SSW | 69% |
| Thursday | 62°F | Mostly Cloudy then Slight Chance Light Rain | 12 to 16 mph SW | 17% |
| Thursday Night | 46°F | Slight Chance Light Rain | 5 to 10 mph W | 21% |
| Friday | 57°F | Chance Light Rain | 5 to 10 mph NW | 42% |
| Friday Night | 39°F | Chance Light Rain | 10 mph NW | 42% |
| Saturday | 53°F | Slight Chance Light Rain then Partly Sunny | 10 mph NW | 21% |
| Saturday Night | 35°F | Partly Cloudy | 7 mph W | 6% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Light Rain | 6 to 12 mph W | 16% |
| Sunday Night | 36°F | Slight Chance Light Rain then Partly Cloudy | 7 to 10 mph WNW | 16% |
| Monday | 58°F | Mostly Sunny | 7 to 13 mph W | 12% |
| Monday Night | 40°F | Partly Cloudy | 10 mph WSW | 11% |
Forecast source: National Weather Service (api.weather.gov) for Romulus (42.224, -83.366). Updated through the day.
Growing snapshot for Romulus
Last spring frost
Apr 20
First fall frost
Oct 27
Growing season
188 days
Hardiness zone
6b
More local growing data for Romulus: nearby ZIP 48242 weather · frost dates · planting calendar · Michigan frost dates
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Climate data from the nearest NOAA station, Detroit Metro Ap, Mi (1.8 mi from Romulus). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.