Arroyo Grande, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Arroyo Grande, a city in San Luis Obispo County, California.

Overnight

51°F

Mostly Clear

Mostly clear, with a low around 51. North wind around 5 mph.

7-day forecast for Arroyo Grande

When	Temp	Forecast	Wind	Precip
Overnight	51°F	Mostly Clear	5 mph N	0%
Wednesday	70°F	Mostly Sunny	5 to 15 mph NNW	0%
Wednesday Night	54°F	Mostly Cloudy	10 to 15 mph N	0%
Thursday	73°F	Mostly Sunny	10 to 15 mph NNE	0%
Thursday Night	53°F	Mostly Clear	5 to 15 mph NNE	0%
Friday	77°F	Sunny	5 to 10 mph NNE	0%
Friday Night	54°F	Mostly Clear	5 to 10 mph NNE	0%
Saturday	77°F	Sunny	0 to 5 mph NNE	0%
Saturday Night	53°F	Mostly Clear	0 to 5 mph NNE	0%
Sunday	78°F	Sunny	0 to 5 mph NNW	0%
Sunday Night	56°F	Mostly Clear	0 to 5 mph NNE	0%
Monday	77°F	Mostly Sunny	0 to 5 mph NNW	0%
Monday Night	55°F	Partly Cloudy	0 to 5 mph N	2%
Tuesday	75°F	Sunny	0 to 5 mph N	2%

Forecast source: National Weather Service (api.weather.gov) for Arroyo Grande (35.124, -120.585). Updated through the day.

Growing snapshot for Arroyo Grande

Last spring frost

Feb 1

First fall frost

Jan 4

Growing season

362 days

Hardiness zone

10a

More local growing data for Arroyo Grande: nearby ZIP 93433 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

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 Santa Margarita Shandon Templeton Whitley Gardens Woodlands

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Climate data from the nearest NOAA station, Pismo Beach, Ca (4.5 mi from Arroyo Grande). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.