Harman US

Highland, CA Weather & Growing Conditions

Tonight
53°F
Mostly Clear
Mostly clear, with a low around 53. East wind 0 to 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 53°F Mostly Clear 0 to 5 mph E 0%
Wednesday 74°F Sunny 0 mph 0%
Wednesday Night 55°F Mostly Clear 0 to 5 mph NE 0%
Thursday 77°F Sunny 0 to 5 mph SW 0%
Thursday Night 56°F Mostly Clear 5 to 10 mph NE 0%
Friday 79°F Sunny 5 mph N 0%
Friday Night 57°F Clear 5 to 15 mph NE 0%
Saturday 81°F Sunny 0 to 5 mph NE 0%
Saturday Night 59°F Mostly Clear 0 to 15 mph NE 0%
Sunday 82°F Sunny 0 to 5 mph NE 0%
Sunday Night 61°F Partly Cloudy 0 to 10 mph NE 0%
Monday 80°F Mostly Sunny 0 mph 0%
Monday Night 60°F Partly Cloudy 0 to 5 mph NE 1%
Tuesday 79°F Mostly Sunny 0 mph 2%

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

Growing snapshot for Highland, CA

Last spring frost
Jan 27
First fall frost
Dec 19
Growing season
329 days
Hardiness zone
10a

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

Climate data from the nearest NOAA station, Redlands, Ca (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.