Millbrae, CA Weather & Growing Conditions
This Afternoon
72°F
Sunny
Sunny. High near 72, with temperatures falling to around 68 in the afternoon. West wind 10 to 15 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 10 to 15 mph W | 0% |
| Tonight | 57°F | Partly Cloudy | 5 to 15 mph W | 1% |
| Saturday | 74°F | Mostly Sunny | 3 to 14 mph W | 0% |
| Saturday Night | 57°F | Mostly Cloudy | 7 to 14 mph W | 2% |
| Sunday | 69°F | Partly Sunny | 7 to 12 mph W | 3% |
| Sunday Night | 58°F | Mostly Cloudy | 5 to 12 mph W | 3% |
| Monday | 71°F | Mostly Sunny | 5 to 12 mph WSW | 1% |
| Monday Night | 57°F | Partly Cloudy | 5 to 12 mph WSW | 0% |
| Tuesday | 74°F | Mostly Sunny | 3 to 10 mph WSW | 0% |
| Tuesday Night | 56°F | Mostly Clear | 2 to 10 mph WSW | 0% |
| Wednesday | 82°F | Sunny | 1 to 9 mph WSW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 to 9 mph SW | 0% |
| Thursday | 83°F | Sunny | 0 to 10 mph WSW | 0% |
| Thursday Night | 60°F | Partly Cloudy | 3 to 10 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Millbrae, CA
Last spring frost
Dec 29
First fall frost
Dec 26
Growing season
365 days
Hardiness zone
10a
Explore more for Millbrae, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, San Francisco Intl Ap, Ca (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.