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

Tonight: Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Mostly Cloudy
 Tuesday

Tuesday: A 30 percent chance of rain after 10am. Cloudy, with a high near 66. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
 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 59. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain
and Breezy
 Wednesday

Wednesday: Showers 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 25 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Heavy Rain
 Wednesday
Night
Wednesday Night: Showers. Low around 56. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Showers
 Christmas
Day
Christmas Day: Showers. High near 65. Chance of precipitation is 90%.
Showers
 Thursday
Night
Thursday Night: Showers. Low around 55. Chance of precipitation is 100%.
Showers
 Friday

Friday: Showers. Mostly cloudy, with a high near 62.
Showers
 Friday
Night
Friday Night: A chance of showers. Mostly cloudy, with a low around 48.
Chance
Showers
Lo 56 °F Hi 66 °F Lo 59 °F Hi 65 °F Lo 56 °F Hi 65 °F Lo 55 °F Hi 62 °F Lo 48 °F

Flood Watch
Wind Advisory
 

Tonight
 
 Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
 
 A 30 percent chance of rain after 10am. Cloudy, with a high near 66. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth 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 59. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
 
 Showers 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 25 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Wednesday Night
 
 Showers. Low around 56. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Christmas Day
 
 Showers. High near 65. Chance of precipitation is 90%.
Thursday Night
 
 Showers. Low around 55. Chance of precipitation is 100%.
Friday
 
 Showers. Mostly cloudy, with a high near 62.
Friday Night
 
 A chance of showers. Mostly cloudy, with a low around 48.
Saturday
 
 A slight chance of showers. Mostly sunny, with a high near 62.
Saturday Night
 
 Mostly clear, with a low around 47.
Sunday
 
 Sunny, with a high near 65.
Sunday Night
 
 Mostly clear, with a low around 47.
Monday
 
 A slight chance of showers. Mostly sunny, with a high near 67.

 

Forecast from NOAA-NWS for Downey CA.