Fallbrook, CA Weather & Growing Conditions

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

Overnight

63°F

Patchy Fog

Patchy fog. Mostly cloudy, with a low around 63. Southwest wind around 0 mph.

7-day forecast for Fallbrook

When	Temp	Forecast	Wind	Precip
Overnight	63°F	Patchy Fog	0 mph	0%
Tuesday	85°F	Patchy Fog then Sunny	0 to 10 mph SW	1%
Tuesday Night	63°F	Patchy Fog	0 to 10 mph SW	1%
Wednesday	85°F	Patchy Fog then Mostly Sunny	0 to 15 mph SW	0%
Wednesday Night	64°F	Patchy Fog	0 to 10 mph S	0%
Thursday	87°F	Patchy Fog then Mostly Sunny	0 to 10 mph S	1%
Thursday Night	65°F	Patchy Fog	0 to 5 mph W	1%
Friday	88°F	Patchy Fog then Sunny	0 to 10 mph SW	0%
Friday Night	65°F	Partly Cloudy	0 to 10 mph S	0%
Saturday	89°F	Sunny	0 to 10 mph S	0%
Saturday Night	65°F	Mostly Clear	0 to 10 mph S	0%
Sunday	88°F	Sunny	0 to 10 mph SW	2%
Sunday Night	64°F	Partly Cloudy	0 to 10 mph SW	2%
Monday	86°F	Sunny	0 to 10 mph SW	6%

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 Aug 4, 2026.