National Weather Service Forecast for: Pomona CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 11:31 pm PDT Jun 21, 2026
 
Overnight

Overnight: Clear early, then becoming cloudy, with a low around 62. West southwest wind around 5 mph.
Becoming
Cloudy
 Monday

Monday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 85. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Clear, with a low around 63. Southwest wind 5 to 10 mph becoming light west southwest in the evening.
Clear
 Tuesday

Tuesday: Sunny, with a high near 93. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light west southwest after midnight.
Mostly Clear
 Wednesday

Wednesday: Mostly sunny, with a high near 93.
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 66.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 90.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 60.
Mostly Clear
Lo 62 °F Hi 85 °F Lo 63 °F Hi 93 °F Lo 67 °F Hi 93 °F Lo 66 °F Hi 90 °F Lo 60 °F

Heat Advisory
 

Overnight
 
 Clear early, then becoming cloudy, with a low around 62. West southwest wind around 5 mph.
Monday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 85. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
 
 Clear, with a low around 63. Southwest wind 5 to 10 mph becoming light west southwest in the evening.
Tuesday
 
 Sunny, with a high near 93. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light west southwest after midnight.
Wednesday
 
 Mostly sunny, with a high near 93.
Wednesday Night
 
 Mostly clear, with a low around 66.
Thursday
 
 Sunny, with a high near 90.
Thursday Night
 
 Mostly clear, with a low around 60.
Friday
 
 Sunny, with a high near 87.
Friday Night
 
 Mostly clear, with a low around 59.
Saturday
 
 Sunny, with a high near 84.
Saturday Night
 
 Mostly clear, with a low around 58.
Sunday
 
 Mostly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Pomona CA.