National Weather Service Forecast for: 2 Miles NW Diamond Bar CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 1:41 am PST Dec 18, 2025
 
Overnight

Overnight: Clear, with a low around 54. East northeast wind around 5 mph.
Clear
Thursday

Thursday: Sunny, with a high near 81. East northeast wind around 5 mph becoming west in the afternoon.
Sunny
Thursday
Night
Thursday Night: Mostly clear, with a low around 54. South wind around 5 mph becoming east in the evening.
Mostly Clear
Friday

Friday: Sunny, with a high near 79. East northeast wind around 5 mph becoming southwest in the afternoon.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 51. South southwest wind around 5 mph becoming calm.
Mostly Clear
Saturday

Saturday: Mostly sunny, with a high near 73.
Mostly Sunny
Saturday
Night
Saturday Night: Mostly cloudy, with a low around 52.
Mostly Cloudy
Sunday

Sunday: Partly sunny, with a high near 72.
Partly Sunny
Sunday
Night
Sunday Night: Mostly cloudy, with a low around 52.
Mostly Cloudy
Lo 54 °F Hi 81 °F Lo 54 °F Hi 79 °F Lo 51 °F Hi 73 °F Lo 52 °F Hi 72 °F Lo 52 °F

Air Quality Alert
 

Overnight
 
Clear, with a low around 54. East northeast wind around 5 mph.
Thursday
 
Sunny, with a high near 81. East northeast wind around 5 mph becoming west in the afternoon.
Thursday Night
 
Mostly clear, with a low around 54. South wind around 5 mph becoming east in the evening.
Friday
 
Sunny, with a high near 79. East northeast wind around 5 mph becoming southwest in the afternoon.
Friday Night
 
Mostly clear, with a low around 51. South southwest wind around 5 mph becoming calm.
Saturday
 
Mostly sunny, with a high near 73.
Saturday Night
 
Mostly cloudy, with a low around 52.
Sunday
 
Partly sunny, with a high near 72.
Sunday Night
 
Mostly cloudy, with a low around 52.
Monday
 
Partly sunny, with a high near 72.
Monday Night
 
Mostly cloudy, with a low around 52.
Tuesday
 
A chance of rain. Mostly cloudy, with a high near 69.
Tuesday Night
 
A chance of rain. Mostly cloudy, with a low around 54.
Wednesday
 
Rain. Cloudy, with a high near 65.

 

Forecast from NOAA-NWS for 2 Miles NW Diamond Bar CA.