Harman US

Acton, CA Weather & Growing Conditions

This Afternoon
87°F
Sunny
Sunny, with a high near 87. West wind 5 to 10 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 87°F Sunny 5 to 10 mph W 0%
Tonight 54°F Partly Cloudy 5 mph SE 0%
Sunday 86°F Mostly Sunny 5 to 10 mph W 0%
Sunday Night 52°F Partly Cloudy 5 to 10 mph SW 1%
Monday 80°F Sunny 5 to 15 mph SW 1%
Monday Night 50°F Mostly Clear 5 to 15 mph SSW 0%
Tuesday 81°F Sunny 5 to 10 mph W 0%
Tuesday Night 60°F Clear 0 to 10 mph ENE 0%
Wednesday 89°F Sunny 5 to 15 mph NE 0%
Wednesday Night 63°F Clear 0 to 10 mph E 0%
Thursday 90°F Sunny 5 to 10 mph ESE 0%
Thursday Night 63°F Mostly Clear 0 to 10 mph S 0%
Friday 88°F Sunny 0 to 15 mph SSW 2%
Friday Night 61°F Mostly Clear 5 to 15 mph SSW 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Acton, CA

Last spring frost
Mar 10
First fall frost
Nov 19
Growing season
248 days
Hardiness zone
9a

Explore more for Acton, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Palmdale, Ca (12.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.