San Leandro, CA Weather & Growing Conditions
Today
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 70 in the afternoon. West southwest wind 3 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Sunny | 3 to 12 mph WSW | 0% |
| Tonight | 58°F | Mostly Cloudy | 6 to 9 mph WSW | 0% |
| Sunday | 68°F | Mostly Cloudy | 6 to 10 mph WSW | 0% |
| Sunday Night | 59°F | Mostly Cloudy | 6 to 9 mph WSW | 1% |
| Monday | 70°F | Mostly Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 58°F | Partly Cloudy | 5 to 12 mph SW | 0% |
| Tuesday | 72°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Tuesday Night | 58°F | Partly Cloudy | 2 to 10 mph SW | 0% |
| Wednesday | 80°F | Mostly Sunny | 2 to 9 mph SW | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 1 to 9 mph WSW | 0% |
| Thursday | 82°F | Mostly Sunny | 1 to 10 mph WSW | 0% |
| Thursday Night | 61°F | Partly Cloudy | 3 to 10 mph WSW | 0% |
| Friday | 77°F | Mostly Sunny | 2 to 12 mph WSW | 0% |
| Friday Night | 60°F | Partly Cloudy | 5 to 12 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Leandro, CA
Last spring frost
Jan 2
First fall frost
Dec 25
Growing season
365 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, Hayward Air Terminal, Ca (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.