Harman US

Highland, CA Weather & Growing Conditions

Tonight
50°F
Mostly Clear
Mostly clear, with a low around 50. Northeast wind 0 to 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 50°F Mostly Clear 0 to 5 mph NE 0%
Wednesday 69°F Sunny 0 to 5 mph SW 0%
Wednesday Night 53°F Mostly Clear 0 to 5 mph NE 0%
Thursday 73°F Sunny 0 to 5 mph NW 0%
Thursday Night 53°F Mostly Clear 5 to 10 mph NE 0%
Friday 75°F Sunny 5 to 10 mph NE 0%
Friday Night 55°F Clear 5 to 15 mph NE 0%
Saturday 77°F Sunny 0 to 10 mph NE 0%
Saturday Night 57°F Clear 0 to 15 mph NE 0%
Sunday 78°F Sunny 0 to 5 mph E 0%
Sunday Night 59°F Partly Cloudy 0 to 15 mph E 0%
Monday 76°F Mostly Sunny 0 to 5 mph NE 0%
Monday Night 57°F Partly Cloudy 0 to 5 mph NE 1%
Tuesday 74°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 (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.