San Leandro, CA Weather & Growing Conditions
Today
77°F
Mostly Sunny
Mostly sunny. High near 77, with temperatures falling to around 73 in the afternoon. West southwest wind 3 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Mostly Sunny | 3 to 9 mph WSW | 0% |
| Tonight | 58°F | Mostly Cloudy | 5 to 8 mph SW | 0% |
| Sunday | 70°F | Mostly Cloudy | 5 to 8 mph SW | 3% |
| Sunday Night | 58°F | Mostly Cloudy | 5 to 8 mph WSW | 3% |
| Monday | 72°F | Mostly Sunny | 5 to 9 mph WSW | 0% |
| Monday Night | 58°F | Partly Cloudy | 3 to 9 mph WSW | 1% |
| Tuesday | 75°F | Mostly Sunny | 3 to 9 mph SW | 0% |
| Tuesday Night | 58°F | Partly Cloudy | 1 to 9 mph SW | 0% |
| Wednesday | 83°F | Mostly Sunny | 1 to 7 mph SW | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 1 to 7 mph WSW | 0% |
| Thursday | 84°F | Mostly Sunny | 1 to 8 mph WSW | 0% |
| Thursday Night | 61°F | Partly Cloudy | 2 to 8 mph WSW | 0% |
| Friday | 78°F | Mostly Sunny | 2 to 9 mph WSW | 0% |
| Friday Night | 59°F | Partly Cloudy | 3 to 9 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Leandro, CA
Last spring frost
Jan 7
First fall frost
Dec 23
Growing season
356 days
Hardiness zone
10a
Explore more for San Leandro, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Oakland Metro Intl Ap, Ca (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.