Larkspur, CA Weather & Growing Conditions
This Afternoon
81°F
Sunny
Sunny. High near 81, with temperatures falling to around 78 in the afternoon. West northwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 6 mph WNW | 0% |
| Tonight | 55°F | Mostly Clear then Patchy Fog | 0 to 5 mph W | 0% |
| Saturday | 82°F | Patchy Fog then Sunny | 0 to 5 mph WSW | 0% |
| Saturday Night | 55°F | Partly Cloudy then Patchy Fog | 2 mph W | 0% |
| Sunday | 74°F | Partly Sunny | 5 mph WSW | 1% |
| Sunday Night | 55°F | Mostly Cloudy | 2 mph WSW | 1% |
| Monday | 74°F | Patchy Fog then Mostly Sunny | 1 to 5 mph SW | 0% |
| Monday Night | 56°F | Partly Cloudy | 0 to 3 mph SW | 0% |
| Tuesday | 79°F | Mostly Sunny | 0 to 3 mph SW | 0% |
| Tuesday Night | 56°F | Mostly Clear | 2 mph WSW | 0% |
| Wednesday | 89°F | Sunny | 0 mph | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 mph | 0% |
| Thursday | 88°F | Sunny | 1 mph W | 0% |
| Thursday Night | 59°F | Partly Cloudy | 1 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Larkspur, CA
Last spring frost
Jan 16
First fall frost
Dec 18
Growing season
334 days
Hardiness zone
10a
Explore more for Larkspur, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Kentfield, Ca (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.