National Weather Service Forecast for: Downey CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 12:47 am PST Dec 23, 2025
 
Overnight

Overnight: Cloudy, with a low around 56. Calm wind.
Cloudy

 Tuesday

Tuesday: Rain likely, mainly after 4pm. Cloudy, with a high near 66. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Slight Chance
Rain then
Rain Likely
 Tuesday
Night
Tuesday Night: Rain likely, then rain and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Low around 59. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Heavy Rain

 Wednesday

Wednesday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 65. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain

 Wednesday
Night
Wednesday Night: Rain. Low around 57. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain

 Christmas
Day
Christmas Day: Rain. High near 65. Chance of precipitation is 80%.
Rain

 Thursday
Night
Thursday Night: Rain. Low around 55. Chance of precipitation is 90%.
Rain

 Friday

Friday: Rain. Mostly cloudy, with a high near 61.
Rain

 Friday
Night
Friday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 48.
Rain Likely
Lo 56 °F Hi 66 °F Lo 59 °F Hi 65 °F Lo 57 °F Hi 65 °F Lo 55 °F Hi 61 °F Lo 48 °F

Flood Watch
Wind Advisory
 

Overnight
 
 Cloudy, with a low around 56. Calm wind.
Tuesday
 
 Rain likely, mainly after 4pm. Cloudy, with a high near 66. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Rain likely, then rain and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Low around 59. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday
 
 Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 65. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
 
 Rain. Low around 57. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Christmas Day
 
 Rain. High near 65. Chance of precipitation is 80%.
Thursday Night
 
 Rain. Low around 55. Chance of precipitation is 90%.
Friday
 
 Rain. Mostly cloudy, with a high near 61.
Friday Night
 
 Rain likely, mainly before 10pm. Mostly cloudy, with a low around 48.
Saturday
 
 Mostly sunny, with a high near 62.
Saturday Night
 
 Mostly clear, with a low around 47.
Sunday
 
 Mostly sunny, with a high near 65.
Sunday Night
 
 Mostly cloudy, with a low around 50.
Monday
 
 A slight chance of rain. Partly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Downey CA.