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Los Altos Hills, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Los Altos Hills, a town in Santa Clara County, California.

Today
68°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny. High near 68, with temperatures falling to around 64 in the afternoon. North northwest wind around 3 mph.

7-day forecast for Los Altos Hills

WhenTempForecastWindPrecip
Today 68°F Patchy Fog then Sunny 3 mph NNW 1%
Tonight 49°F Mostly Cloudy 3 mph W 1%
Thursday 73°F Sunny 2 mph NW 0%
Thursday Night 50°F Mostly Clear 2 mph W 0%
Friday 75°F Sunny 2 mph NNE 0%
Friday Night 51°F Mostly Clear 1 mph NE 0%
Saturday 78°F Sunny 1 mph NNE 0%
Saturday Night 51°F Mostly Clear 1 mph NNW 0%
Sunday 77°F Mostly Sunny 1 mph NNW 0%
Sunday Night 52°F Partly Cloudy 1 mph NW 0%
Monday 74°F Mostly Sunny 1 mph NW 0%
Monday Night 51°F Partly Cloudy 1 mph W 1%
Tuesday 75°F Mostly Sunny 1 mph NNW 1%
Tuesday Night 52°F Partly Cloudy 1 mph WSW 9%

Forecast source: National Weather Service (api.weather.gov) for Los Altos Hills (37.367, -122.139). Updated through the day.

Growing snapshot for Los Altos Hills

Last spring frost
Mar 21
First fall frost
Dec 15
Growing season
275 days
Hardiness zone
9b

More local growing data for Los Altos Hills: nearby ZIP 94022 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Skyline Ridge Preserve, Ca (3.6 mi from Los Altos Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.