Santa Margarita, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Santa Margarita, a community in San Luis Obispo County, California.

Overnight

50°F

Mostly Clear

Mostly clear, with a low around 50. South southwest wind around 0 mph.

7-day forecast for Santa Margarita

When	Temp	Forecast	Wind	Precip
Overnight	50°F	Mostly Clear	0 mph	0%
Tuesday	93°F	Sunny	0 to 10 mph SW	0%
Tuesday Night	51°F	Mostly Clear	0 to 5 mph S	0%
Wednesday	93°F	Sunny	0 to 10 mph SSW	0%
Wednesday Night	53°F	Mostly Clear	0 to 5 mph N	0%
Thursday	95°F	Sunny	0 to 5 mph NNW	0%
Thursday Night	59°F	Mostly Clear	0 to 5 mph W	0%
Friday	98°F	Sunny	0 to 5 mph WNW	0%
Friday Night	61°F	Mostly Clear	0 to 5 mph W	0%
Saturday	99°F	Sunny	0 to 5 mph W	0%
Saturday Night	62°F	Clear	0 to 5 mph SW	0%
Sunday	96°F	Sunny	0 to 10 mph SSW	0%
Sunday Night	58°F	Mostly Clear	0 to 10 mph SW	1%
Monday	87°F	Sunny	0 to 10 mph SW	1%

Forecast source: National Weather Service (api.weather.gov) for Santa Margarita (35.389, -120.608). Updated through the day.

Growing snapshot for Santa Margarita

Last spring frost

Jan 16

First fall frost

Dec 25

Growing season

349 days

Hardiness zone

More local growing data for Santa Margarita: nearby ZIP 93410 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Arroyo Grande Atascadero Avila Beach Blacklake California Polytechnic State University Callender Cambria Cayucos Creston Edna El Paso de Robles (Paso Robles) Garden Farms Grover Beach Los Berros Los Osos Los Ranchos Morro Bay Nipomo Oceano Pismo Beach San Luis Obispo San Miguel San Simeon Shandon Templeton Whitley Gardens Woodlands

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Climate data from the nearest NOAA station, San Luis Obispo Poly, Ca (0.3 mi from Santa Margarita). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.