National Weather Service Forecast for: Norco CA
Issued by: National Weather Service San Diego, CA
Updated: 12:56 pm PST Dec 17, 2025
 
Tonight

Tonight: Mostly clear, with a low around 51. Calm wind becoming southeast around 5 mph after midnight.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 84. Southeast wind around 5 mph becoming calm  in the morning.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 53. Calm wind becoming east around 5 mph.
Mostly Clear

Friday

Friday: Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 50. Calm wind.
Mostly Clear

Saturday

Saturday: Sunny, with a high near 74.
Sunny

Saturday
Night
Saturday Night: Partly cloudy, with a low around 52.
Partly Cloudy

Sunday

Sunday: Partly sunny, with a high near 75.
Partly Sunny

Sunday
Night
Sunday Night: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 50.
Partly Cloudy
then Patchy
Fog
Lo 51 °F Hi 84 °F Lo 53 °F Hi 79 °F Lo 50 °F Hi 74 °F Lo 52 °F Hi 75 °F Lo 50 °F

Air Quality Alert
 

Tonight
 
Mostly clear, with a low around 51. Calm wind becoming southeast around 5 mph after midnight.
Thursday
 
Sunny, with a high near 84. Southeast wind around 5 mph becoming calm in the morning.
Thursday Night
 
Mostly clear, with a low around 53. Calm wind becoming east around 5 mph.
Friday
 
Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
 
Mostly clear, with a low around 50. Calm wind.
Saturday
 
Sunny, with a high near 74.
Saturday Night
 
Partly cloudy, with a low around 52.
Sunday
 
Partly sunny, with a high near 75.
Sunday Night
 
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 50.
Monday
 
Patchy fog before 10am. Otherwise, partly sunny, with a high near 74.
Monday Night
 
Mostly cloudy, with a low around 50.
Tuesday
 
A slight chance of showers. Partly sunny, with a high near 70.
Tuesday Night
 
A chance of showers. Mostly cloudy, with a low around 52.
Wednesday
 
Showers likely. Mostly cloudy, with a high near 67.

 

Forecast from NOAA-NWS for Norco CA.