San Rafael, CA Weather & Growing Conditions
Today
83°F
Sunny
Sunny. High near 83, with temperatures falling to around 79 in the afternoon. Southwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 6 mph SW | 0% |
| Tonight | 56°F | Partly Cloudy | 0 to 3 mph WSW | 0% |
| Sunday | 73°F | Mostly Cloudy | 0 to 5 mph SSW | 0% |
| Sunday Night | 55°F | Mostly Cloudy | 3 mph WSW | 0% |
| Monday | 72°F | Mostly Sunny | 2 to 8 mph SW | 1% |
| Monday Night | 56°F | Partly Cloudy | 1 to 7 mph SW | 1% |
| Tuesday | 75°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Tuesday Night | 56°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Wednesday | 88°F | Patchy Fog then Sunny | 2 mph W | 0% |
| Wednesday Night | 59°F | Mostly Clear | 2 mph NW | 0% |
| Thursday | 90°F | Sunny | 2 mph WSW | 0% |
| Thursday Night | 59°F | Mostly Clear | 2 mph SW | 0% |
| Friday | 83°F | Mostly Sunny | 0 to 6 mph SW | 0% |
| Friday Night | 58°F | Mostly Clear | 1 to 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Rafael, CA
Last spring frost
Jan 11
First fall frost
Dec 21
Growing season
349 days
Hardiness zone
10a
Explore more for San Rafael, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, San Rafael Civic Ctr, Ca (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.