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

45°F

Partly Cloudy

Partly cloudy, with a low around 45. North wind around 5 mph.

7-day forecast for Santa Margarita

When	Temp	Forecast	Wind	Precip
Overnight	45°F	Partly Cloudy	5 mph N	0%
Wednesday	68°F	Mostly Sunny	5 to 15 mph NNE	0%
Wednesday Night	47°F	Mostly Cloudy	10 to 15 mph NNE	0%
Thursday	71°F	Mostly Sunny	10 to 15 mph NE	0%
Thursday Night	47°F	Mostly Clear	10 to 15 mph NE	0%
Friday	76°F	Sunny	10 to 15 mph NE	0%
Friday Night	47°F	Mostly Clear	5 to 10 mph NE	0%
Saturday	81°F	Sunny	0 to 5 mph NNW	0%
Saturday Night	47°F	Mostly Clear	0 to 5 mph NNE	0%
Sunday	77°F	Sunny	0 to 5 mph NE	0%
Sunday Night	49°F	Mostly Clear	0 to 5 mph NE	0%
Monday	76°F	Sunny	0 to 5 mph N	0%
Monday Night	48°F	Partly Cloudy	0 to 5 mph N	1%
Tuesday	74°F	Sunny	0 to 5 mph NNE	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 Nov 4, 2026.