San Rafael, CA Weather & Growing Conditions
Today
68°F
Sunny
Sunny. High near 68, with temperatures falling to around 63 in the afternoon. North northwest wind 2 to 9 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Sunny | 2 to 9 mph NNW | 2% |
| Tonight | 48°F | Mostly Cloudy | 2 to 9 mph NW | 2% |
| Thursday | 72°F | Mostly Sunny | 2 mph NW | 0% |
| Thursday Night | 47°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 73°F | Sunny | 2 mph NNE | 0% |
| Friday Night | 48°F | Mostly Clear | 0 mph | 0% |
| Saturday | 75°F | Sunny | 0 to 5 mph NNE | 0% |
| Saturday Night | 48°F | Mostly Clear | 1 mph NW | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph NNW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 mph NW | 0% |
| Monday | 72°F | Mostly Sunny | 2 mph WNW | 2% |
| Monday Night | 49°F | Partly Cloudy | 2 mph WNW | 2% |
| Tuesday | 72°F | Sunny | 2 mph NW | 7% |
| Tuesday Night | 51°F | Slight Chance Light Rain | 2 mph WSW | 17% |
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
9b
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 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.