Harman US

Descanso, CA Weather & Growing Conditions

This Afternoon
80°F
Sunny
Sunny, with a high near 80. West wind around 10 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 80°F Sunny 10 mph W 3%
Tonight 59°F Mostly Clear 0 to 5 mph N 3%
Saturday 83°F Sunny 0 to 10 mph N 0%
Saturday Night 62°F Mostly Clear 0 to 5 mph E 0%
Sunday 82°F Mostly Sunny 0 to 5 mph S 0%
Sunday Night 61°F Mostly Cloudy 0 to 5 mph W 1%
Monday 77°F Sunny 0 to 10 mph SW 1%
Monday Night 57°F Mostly Clear 0 to 10 mph W 0%
Tuesday 81°F Sunny 0 to 5 mph W 0%
Tuesday Night 61°F Clear 0 to 5 mph N 0%
Wednesday 87°F Sunny 0 to 10 mph NE 3%
Wednesday Night 66°F Mostly Clear 0 to 5 mph NE 2%
Thursday 88°F Sunny 0 to 10 mph S 6%
Thursday Night 68°F Mostly Clear 0 mph 5%

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

Growing snapshot for Descanso, CA

Last spring frost
Apr 19
First fall frost
Oct 27
Growing season
190 days
Hardiness zone
9b

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

Climate data from the nearest NOAA station, Cuyamaca, Ca (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.