San Carlos, CA Weather & Growing Conditions
Today
86°F
Sunny
Sunny. High near 86, with temperatures falling to around 83 in the afternoon. West wind 2 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 2 to 9 mph W | 0% |
| Tonight | 57°F | Mostly Clear | 2 to 8 mph SW | 0% |
| Wednesday | 84°F | Sunny | 2 to 9 mph WSW | 0% |
| Wednesday Night | 58°F | Mostly Clear | 1 to 9 mph WSW | 0% |
| Thursday | 83°F | Sunny | 0 to 9 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 1 to 9 mph WNW | 0% |
| Friday | 87°F | Sunny | 1 to 9 mph WNW | 0% |
| Friday Night | 60°F | Mostly Clear | 1 to 9 mph W | 0% |
| Saturday | 86°F | Sunny | 1 to 9 mph W | 0% |
| Saturday Night | 61°F | Mostly Clear | 2 to 9 mph WSW | 0% |
| Sunday | 82°F | Sunny | 2 to 12 mph W | 0% |
| Sunday Night | 58°F | Mostly Clear | 5 to 12 mph WSW | 0% |
| Monday | 78°F | Sunny | 5 to 12 mph WSW | 0% |
| Monday Night | 57°F | Mostly Clear | 5 to 12 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Carlos, CA
Last spring frost
Jan 17
First fall frost
Dec 12
Growing season
333 days
Hardiness zone
10a
Explore more for San Carlos, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Redwood City, Ca (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.