Ruby, MI Weather & Growing Conditions
Tonight
54°F
Mostly Cloudy
Mostly cloudy, with a low around 54. East northeast wind 5 to 12 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Cloudy | 5 to 12 mph ENE | 12% |
| Saturday | 66°F | Slight Chance Light Rain then Rain Showers Likely | 3 to 8 mph ESE | 62% |
| Saturday Night | 55°F | Showers And Thunderstorms Likely | 5 to 8 mph E | 73% |
| Sunday | 65°F | Chance Rain Showers | 6 to 14 mph NNE | 36% |
| Sunday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 9 to 14 mph NE | 17% |
| Monday | 63°F | Mostly Cloudy | 13 mph NE | 3% |
| Monday Night | 49°F | Mostly Cloudy | 12 mph ENE | 7% |
| Tuesday | 62°F | Partly Sunny then Slight Chance Rain Showers | 14 mph ENE | 18% |
| Tuesday Night | 50°F | Chance Rain Showers | 13 mph ENE | 44% |
| Wednesday | 62°F | Chance Rain Showers | 12 mph ENE | 49% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 6 to 10 mph E | 49% |
| Thursday | 65°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph ENE | 20% |
| Thursday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 8 mph NE | 15% |
| Friday | 67°F | Mostly Sunny | 5 to 9 mph NNE | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ruby, MI
Last spring frost
Apr 19
First fall frost
Nov 3
Growing season
196 days
Hardiness zone
6a
Explore more for Ruby, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Port Huron, Mi (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.