Atascadero, CA Weather & Growing Conditions

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

This Afternoon

85°F

Sunny

Sunny, with a high near 85. West wind 5 to 10 mph.

7-day forecast for Atascadero

When	Temp	Forecast	Wind	Precip
This Afternoon	85°F	Sunny	5 to 10 mph W	0%
Tonight	51°F	Mostly Clear	5 mph NNW	0%
Saturday	89°F	Sunny	5 to 10 mph NW	0%
Saturday Night	53°F	Mostly Cloudy then Patchy Fog	5 mph NE	0%
Sunday	84°F	Patchy Fog then Partly Sunny	5 to 10 mph W	2%
Sunday Night	51°F	Partly Cloudy	0 to 5 mph SW	2%
Monday	79°F	Mostly Sunny	0 to 10 mph WSW	0%
Monday Night	51°F	Partly Cloudy	0 to 10 mph SW	0%
Tuesday	84°F	Sunny	0 to 10 mph WNW	0%
Tuesday Night	56°F	Clear	0 to 10 mph NNE	0%
Wednesday	95°F	Sunny	0 to 5 mph N	0%
Wednesday Night	60°F	Mostly Clear	0 to 5 mph ENE	0%
Thursday	93°F	Sunny	0 to 10 mph S	1%
Thursday Night	59°F	Partly Cloudy	0 to 10 mph SSE	1%

Forecast source: National Weather Service (api.weather.gov) for Atascadero (35.486, -120.688). Updated through the day.

Growing snapshot for Atascadero

Last spring frost

Jan 19

First fall frost

Jan 14

Growing season

365 days

Hardiness zone

More local growing data for Atascadero: nearby ZIP 93422 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Arroyo Grande 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

All California locations ›

Climate data from the nearest NOAA station, Morro Bay Fire Dept, Ca (11.1 mi from Atascadero). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.