Sunol, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sunol, a community in Alameda County, California.
Tonight
55°F
Mostly Clear
Mostly clear, with a low around 55. Southwest wind around 8 mph.
7-day forecast for Sunol
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Clear | 8 mph SW | 0% |
| Saturday | 82°F | Sunny | 5 to 10 mph WSW | 0% |
| Saturday Night | 56°F | Mostly Cloudy | 9 mph SW | 0% |
| Sunday | 75°F | Partly Sunny | 7 to 10 mph WSW | 3% |
| Sunday Night | 55°F | Mostly Cloudy | 7 to 10 mph WSW | 3% |
| Monday | 78°F | Mostly Sunny | 7 to 10 mph WSW | 0% |
| Monday Night | 56°F | Mostly Clear | 5 to 10 mph WSW | 0% |
| Tuesday | 82°F | Sunny | 5 to 9 mph WSW | 0% |
| Tuesday Night | 58°F | Mostly Clear | 2 to 9 mph SW | 0% |
| Wednesday | 92°F | Sunny | 2 to 9 mph W | 0% |
| Wednesday Night | 63°F | Mostly Clear | 2 to 9 mph WSW | 0% |
| Thursday | 92°F | Sunny | 2 to 10 mph SSW | 0% |
| Thursday Night | 62°F | Mostly Clear | 5 to 10 mph WSW | 0% |
| Friday | 85°F | Sunny | 5 to 10 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Sunol (37.586, -121.880). Updated through the day.
Growing snapshot for Sunol
Last spring frost
Feb 15
First fall frost
Dec 2
Growing season
292 days
Hardiness zone
9b
More local growing data for Sunol: nearby ZIP 94586 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Livermore, Ca (8.9 mi from Sunol). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.