National Weather Service Forecast for: Atascadero CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 6:16 pm PST Dec 22, 2025
 
Tonight

Tonight: Cloudy, with a low around 48. West southwest wind around 5 mph becoming southeast in the evening.
Cloudy
 Tuesday

Tuesday: A 40 percent chance of rain. Cloudy, with a high near 59. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Chance Rain
and Breezy
 Tuesday
Night
Tuesday Night: Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 52. Windy, with a south wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain
and Windy
 Wednesday

Wednesday: Showers. High near 57. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Showers and
Breezy
 Wednesday
Night
Wednesday Night: Showers. Low around 49. Breezy, with a south wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Showers and
Breezy
 Christmas
Day
Christmas Day: Showers. High near 54. Breezy. Chance of precipitation is 100%.
Showers and
Breezy
 Thursday
Night
Thursday Night: Showers. Low around 44. Chance of precipitation is 100%.
Showers
 Friday

Friday: Showers. Cloudy, with a high near 53.
Showers
 Friday
Night
Friday Night: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 36.
Showers
Likely
Lo 48 °F Hi 59 °F Lo 52 °F Hi 57 °F Lo 49 °F Hi 54 °F Lo 44 °F Hi 53 °F Lo 36 °F

Flood Watch
High Wind Warning
 

Tonight
 
 Cloudy, with a low around 48. West southwest wind around 5 mph becoming southeast in the evening.
Tuesday
 
 A 40 percent chance of rain. Cloudy, with a high near 59. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 52. Windy, with a south wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
 
 Showers. High near 57. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
 
 Showers. Low around 49. Breezy, with a south wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Christmas Day
 
 Showers. High near 54. Breezy. Chance of precipitation is 100%.
Thursday Night
 
 Showers. Low around 44. Chance of precipitation is 100%.
Friday
 
 Showers. Cloudy, with a high near 53.
Friday Night
 
 Showers likely, mainly before 10pm. Mostly cloudy, with a low around 36.
Saturday
 
 A chance of showers, mainly before 10am. Mostly sunny, with a high near 54.
Saturday Night
 
 Mostly clear, with a low around 36.
Sunday
 
 Sunny, with a high near 55.
Sunday Night
 
 Mostly clear, with a low around 35.
Monday
 
 Sunny, with a high near 58.

 

Forecast from NOAA-NWS for Atascadero CA.