Harman US

Ross, CA Weather & Growing Conditions

Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. Southwest wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 54°F Mostly Clear 2 mph SW 0%
Tuesday 88°F Haze then Sunny 5 mph SW 1%
Tuesday Night 55°F Mostly Clear 3 mph WSW 2%
Wednesday 83°F Mostly Sunny 5 mph SW 3%
Wednesday Night 55°F Partly Cloudy 0 to 5 mph SW 0%
Thursday 82°F Sunny 0 to 5 mph SW 0%
Thursday Night 55°F Mostly Clear 0 to 5 mph SW 0%
Friday 88°F Sunny 0 to 5 mph SW 0%
Friday Night 60°F Mostly Clear 5 mph WSW 0%
Saturday 86°F Sunny 1 to 5 mph WSW 0%
Saturday Night 62°F Mostly Clear 5 mph WSW 0%
Sunday 84°F Sunny 3 to 7 mph WSW 0%
Sunday Night 59°F Mostly Clear 7 mph WSW 0%
Monday 77°F Sunny 7 mph SW 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 Aug 4, 2026.