Inverness, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Inverness, a community in Marin County, California.
Overnight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. Northwest wind 6 to 9 mph, with gusts as high as 18 mph.
7-day forecast for Inverness
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Partly Cloudy | 6 to 9 mph NW | 0% |
| Saturday | 68°F | Sunny | 5 to 12 mph WNW | 0% |
| Saturday Night | 54°F | Mostly Cloudy | 7 to 12 mph WNW | 1% |
| Sunday | 64°F | Mostly Cloudy | 7 to 10 mph WNW | 1% |
| Sunday Night | 54°F | Mostly Cloudy | 5 to 9 mph WNW | 1% |
| Monday | 65°F | Mostly Sunny | 3 to 8 mph W | 0% |
| Monday Night | 54°F | Partly Cloudy | 2 to 8 mph W | 0% |
| Tuesday | 67°F | Mostly Sunny | 2 to 9 mph W | 0% |
| Tuesday Night | 54°F | Partly Cloudy | 2 to 9 mph NW | 0% |
| Wednesday | 73°F | Mostly Sunny | 2 to 8 mph NW | 0% |
| Wednesday Night | 57°F | Partly Cloudy | 2 to 8 mph NW | 0% |
| Thursday | 74°F | Mostly Sunny | 2 to 9 mph WNW | 0% |
| Thursday Night | 57°F | Partly Cloudy | 5 to 9 mph WNW | 0% |
| Friday | 70°F | Mostly Sunny | 5 to 9 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Inverness (38.083, -122.855). Updated through the day.
Growing snapshot for Inverness
Last spring frost
Jan 11
First fall frost
Dec 21
Growing season
349 days
Hardiness zone
9b
More local growing data for Inverness: nearby ZIP 94956 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, San Rafael Civic Ctr, Ca (15.4 mi from Inverness). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.