Ross, CA Weather & Growing Conditions
Tonight
54°F
Mostly Clear
Mostly clear, with a low around 54. West wind 0 to 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Clear | 0 to 3 mph W | 0% |
| Saturday | 82°F | Sunny | 0 to 5 mph WSW | 0% |
| Saturday Night | 54°F | Partly Cloudy | 5 mph W | 0% |
| Sunday | 74°F | Partly Sunny | 5 mph W | 0% |
| Sunday Night | 54°F | Mostly Cloudy | 0 to 5 mph WSW | 1% |
| Monday | 74°F | Patchy Fog then Mostly Sunny | 0 to 5 mph WSW | 0% |
| Monday Night | 57°F | Partly Cloudy | 5 mph WSW | 0% |
| Tuesday | 77°F | Sunny | 5 mph WSW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Wednesday | 87°F | Sunny | 2 mph NNW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 2 mph WNW | 0% |
| Thursday | 87°F | Sunny | 0 to 3 mph WSW | 0% |
| Thursday Night | 61°F | Partly Cloudy | 3 mph W | 0% |
| Friday | 82°F | Mostly Sunny | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ross, CA
Last spring frost
Jan 16
First fall frost
Dec 18
Growing season
334 days
Hardiness zone
9b
Explore more for Ross, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Kentfield, Ca (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.