Harman US

March ARB, CA Weather & Growing Conditions

Tonight
50°F
Patchy Fog
Patchy fog between 10pm and 4am. Mostly clear, with a low around 50. Northwest wind 0 to 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 50°F Patchy Fog 0 to 5 mph NW 0%
Wednesday 71°F Sunny 0 to 5 mph S 0%
Wednesday Night 52°F Mostly Clear 0 to 5 mph NE 0%
Thursday 76°F Sunny 0 mph 0%
Thursday Night 53°F Mostly Clear 0 to 10 mph N 0%
Friday 78°F Sunny 0 to 5 mph NE 0%
Friday Night 55°F Clear 5 to 20 mph NE 0%
Saturday 81°F Sunny 0 to 5 mph NE 0%
Saturday Night 56°F Clear 0 to 20 mph NE 0%
Sunday 81°F Sunny 0 to 5 mph NE 0%
Sunday Night 58°F Partly Cloudy 0 to 15 mph E 0%
Monday 79°F Mostly Sunny 0 to 5 mph S 0%
Monday Night 57°F Partly Cloudy 0 to 5 mph N 1%
Tuesday 78°F Mostly Sunny 0 mph 2%

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

Growing snapshot for March ARB, CA

Last spring frost
Jan 10
First fall frost
Jan 2
Growing season
365 days
Hardiness zone
9b

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

Climate data from the nearest NOAA station, Riverside Citrus Exp, Ca (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.