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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

WhenTempForecastWindPrecip
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

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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.