Harman US

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

WhenTempForecastWindPrecip
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.