National Weather Service Forecast for: Atascadero CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 11:31 pm PDT Jun 21, 2026
 
Overnight

Overnight: Mostly clear early, then becoming cloudy, with a low around 51. West northwest wind around 5 mph.
Becoming
Cloudy
 Monday

Monday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 80. West northwest wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 51. Southwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 15 mph.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 52. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 85.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 51.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 83.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 50.
Mostly Clear
Lo 51 °F Hi 80 °F Lo 51 °F Hi 83 °F Lo 52 °F Hi 85 °F Lo 51 °F Hi 83 °F Lo 50 °F

 

Overnight
 
 Mostly clear early, then becoming cloudy, with a low around 51. West northwest wind around 5 mph.
Monday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 80. West northwest wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
 
 Mostly clear, with a low around 51. Southwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 15 mph.
Tuesday
 
 Sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
 
 Mostly clear, with a low around 52. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.
Wednesday
 
 Sunny, with a high near 85.
Wednesday Night
 
 Mostly clear, with a low around 51.
Thursday
 
 Sunny, with a high near 83.
Thursday Night
 
 Mostly clear, with a low around 50.
Friday
 
 Sunny, with a high near 85.
Friday Night
 
 Mostly clear, with a low around 52.
Saturday
 
 Sunny, with a high near 84.
Saturday Night
 
 Mostly clear, with a low around 50.
Sunday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Atascadero CA.