Harman US

West Covina, CA Weather & Growing Conditions

Tonight
59°F
Mostly Clear
Mostly clear, with a low around 59. South southeast wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 59°F Mostly Clear 5 mph SSE 0%
Saturday 85°F Sunny 5 to 10 mph SSW 0%
Saturday Night 61°F Patchy Fog 0 to 5 mph SSW 0%
Sunday 83°F Patchy Fog then Partly Sunny 5 to 10 mph SSW 0%
Sunday Night 60°F Partly Cloudy 0 to 5 mph SSW 1%
Monday 80°F Mostly Sunny 5 to 10 mph SSW 1%
Monday Night 61°F Mostly Clear 0 to 10 mph SSW 1%
Tuesday 84°F Sunny 0 to 5 mph SSW 0%
Tuesday Night 63°F Clear 0 to 5 mph WNW 0%
Wednesday 91°F Sunny 0 to 10 mph W 1%
Wednesday Night 66°F Mostly Clear 0 to 10 mph WSW 3%
Thursday 92°F Sunny 0 to 5 mph SW 2%
Thursday Night 67°F Mostly Clear 0 to 5 mph WSW 1%
Friday 92°F Sunny 0 to 5 mph SW 3%

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

Growing snapshot for West Covina, CA

Last spring frost
Jan 8
First fall frost
Dec 28
Growing season
354 days
Hardiness zone
10a

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

Climate data from the nearest NOAA station, Pomona/Fairplex, Ca (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.