Ashland, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ashland, a community in Alameda County, California.
Today
78°F
Mostly Sunny
Mostly sunny. High near 78, with temperatures falling to around 74 in the afternoon. West southwest wind 3 to 9 mph.
7-day forecast for Ashland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Mostly Sunny | 3 to 9 mph WSW | 0% |
| Tonight | 58°F | Mostly Cloudy | 7 mph WSW | 0% |
| Sunday | 70°F | Mostly Cloudy | 5 to 8 mph WSW | 3% |
| Sunday Night | 58°F | Mostly Cloudy | 7 mph WSW | 3% |
| Monday | 73°F | Mostly Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 58°F | Partly Cloudy | 2 to 9 mph WSW | 0% |
| Tuesday | 76°F | Mostly Sunny | 2 to 9 mph WSW | 0% |
| Tuesday Night | 58°F | Partly Cloudy | 1 to 9 mph SW | 0% |
| Wednesday | 85°F | Mostly Sunny | 1 to 7 mph SW | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 0 to 7 mph WSW | 0% |
| Thursday | 86°F | Sunny | 0 to 8 mph WSW | 0% |
| Thursday Night | 61°F | Partly Cloudy | 2 to 8 mph WSW | 0% |
| Friday | 80°F | Mostly Sunny | 2 to 9 mph WSW | 0% |
| Friday Night | 59°F | Partly Cloudy | 2 to 9 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Ashland (37.694, -122.116). Updated through the day.
Growing snapshot for Ashland
Last spring frost
Jan 2
First fall frost
Dec 25
Growing season
365 days
Hardiness zone
10a
More local growing data for Ashland: nearby ZIP 94578 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Alameda
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Fremont
Hayward
Kensington
Livermore
Mountain House
Newark
Oakland
Piedmont
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San Leandro
San Lorenzo
Sunol
Union City
Climate data from the nearest NOAA station, Hayward Air Terminal, Ca (3.7 mi from Ashland). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.