Mount Laguna, CA Weather & Growing Conditions

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

Tonight

38°F

Partly Cloudy

Partly cloudy, with a low around 38. West wind around 15 mph, with gusts as high as 25 mph.

7-day forecast for Mount Laguna

When	Temp	Forecast	Wind	Precip
Tonight	38°F	Partly Cloudy	15 mph W	0%
Wednesday	57°F	Sunny	5 to 10 mph N	0%
Wednesday Night	40°F	Mostly Clear	0 to 5 mph NE	0%
Thursday	57°F	Sunny	0 to 5 mph NE	0%
Thursday Night	41°F	Mostly Clear	0 to 5 mph NE	0%
Friday	58°F	Sunny	5 to 10 mph NE	0%
Friday Night	43°F	Clear	5 to 10 mph NE	0%
Saturday	59°F	Sunny	5 to 15 mph NE	0%
Saturday Night	44°F	Clear	5 mph NE	0%
Sunday	60°F	Sunny	5 to 10 mph NE	0%
Sunday Night	45°F	Partly Cloudy	0 to 5 mph N	0%
Monday	62°F	Mostly Sunny	0 to 5 mph NE	0%
Monday Night	44°F	Mostly Clear	0 mph	1%
Tuesday	61°F	Mostly Sunny	0 mph	1%

Forecast source: National Weather Service (api.weather.gov) for Mount Laguna (32.871, -116.425). Updated through the day.

Growing snapshot for Mount Laguna

Last spring frost

Apr 22

First fall frost

Nov 8

Growing season

197 days

Hardiness zone

More local growing data for Mount Laguna: nearby ZIP 91948 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Mt Laguna #3, Ca (3.1 mi from Mount Laguna). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.