Harman US

Highland, CA Weather & Growing Conditions

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

7-day forecast

WhenTempForecastWindPrecip
Today 87°F Sunny 5 to 10 mph W 0%
Tonight 59°F Mostly Clear then Patchy Fog 0 to 10 mph NW 0%
Sunday 86°F Patchy Fog then Mostly Sunny 0 to 10 mph W 0%
Sunday Night 60°F Patchy Fog 0 to 5 mph N 2%
Monday 79°F Patchy Fog then Mostly Sunny 0 to 5 mph SW 2%
Monday Night 55°F Mostly Clear 0 to 5 mph W 1%
Tuesday 82°F Sunny 0 to 5 mph NW 1%
Tuesday Night 60°F Clear 0 to 5 mph N 0%
Wednesday 90°F Sunny 5 mph SW 2%
Wednesday Night 63°F Clear 0 to 10 mph NE 1%
Thursday 91°F Sunny 0 to 5 mph S 6%
Thursday Night 64°F Mostly Clear 0 to 5 mph NE 6%
Friday 89°F Sunny 0 to 5 mph S 6%
Friday Night 64°F Mostly Clear 0 to 5 mph SE 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 Sep 19, 2026.