Fallbrook, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Fallbrook, a community in San Diego County, California.

Tonight

55°F

Patchy Fog

Patchy fog after 10pm. Partly cloudy, with a low around 55. East wind 0 to 5 mph.

7-day forecast for Fallbrook

When	Temp	Forecast	Wind	Precip
Tonight	55°F	Patchy Fog	0 to 5 mph E	0%
Wednesday	74°F	Patchy Fog then Sunny	0 to 5 mph S	0%
Wednesday Night	56°F	Mostly Clear	0 to 5 mph NE	0%
Thursday	79°F	Sunny	0 to 5 mph NW	0%
Thursday Night	57°F	Mostly Clear	0 to 5 mph E	0%
Friday	83°F	Sunny	0 to 5 mph N	0%
Friday Night	58°F	Clear	0 to 15 mph N	0%
Saturday	86°F	Sunny	5 to 10 mph N	0%
Saturday Night	61°F	Mostly Clear	5 to 15 mph NE	0%
Sunday	87°F	Sunny	0 to 5 mph N	0%
Sunday Night	63°F	Partly Cloudy	5 to 10 mph NE	0%
Monday	84°F	Mostly Sunny	0 to 5 mph SW	0%
Monday Night	61°F	Partly Cloudy	0 to 5 mph NE	1%
Tuesday	82°F	Mostly Sunny	0 to 5 mph NW	2%

Forecast source: National Weather Service (api.weather.gov) for Fallbrook (33.374, -117.220). Updated through the day.

Growing snapshot for Fallbrook

Last spring frost

Feb 2

First fall frost

Jan 30

Growing season

365 days

Hardiness zone

10a

More local growing data for Fallbrook: nearby ZIP 92028 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Alpine Bonita Bonsall Borrego Springs Bostonia Boulevard Camp Pendleton Mainside Camp Pendleton South Campo Carlsbad Casa de Oro-Mount Helix Chula Vista Coronado Crest Del Dios Del Mar Descanso El Cajon Elfin Forest Encinitas Escondido Eucalyptus Hills Fairbanks Ranch Granite Hills Harbison Canyon Harmony Grove Hidden Meadows Imperial Beach Jacumba Jamul

All California locations ›

Climate data from the nearest NOAA station, Fallbrook 5 Ne, Ca (4.2 mi from Fallbrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.