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.

Today

87°F

Sunny

Sunny, with a high near 87. West wind 5 to 10 mph.

7-day forecast for Santa Margarita

When	Temp	Forecast	Wind	Precip
Today	87°F	Sunny	5 to 10 mph W	0%
Tonight	54°F	Mostly Cloudy	5 mph E	0%
Sunday	82°F	Mostly Cloudy	5 to 10 mph W	1%
Sunday Night	51°F	Mostly Cloudy then Patchy Fog	5 mph SW	2%
Monday	74°F	Patchy Fog then Mostly Sunny	5 to 10 mph WSW	1%
Monday Night	51°F	Partly Cloudy	0 to 10 mph NW	1%
Tuesday	82°F	Sunny	0 to 5 mph NW	0%
Tuesday Night	55°F	Clear	0 to 5 mph N	0%
Wednesday	93°F	Sunny	0 to 5 mph NNW	0%
Wednesday Night	59°F	Mostly Clear	0 to 5 mph N	0%
Thursday	91°F	Sunny	0 to 10 mph E	0%
Thursday Night	57°F	Mostly Clear	0 to 10 mph SSE	0%
Friday	86°F	Sunny	0 to 10 mph SSW	1%
Friday Night	56°F	Partly Cloudy	0 to 5 mph SSW	2%

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 Sep 19, 2026.