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

Overnight: Mostly clear early, then becoming cloudy, with a low around 62. 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 84. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 62. Southwest wind 5 to 10 mph becoming light in the evening.
Patchy Fog
 Tuesday

Tuesday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 90. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 65. Southwest wind 5 to 10 mph becoming light after midnight.
Partly Cloudy
 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 91.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 65.
Mostly Clear
 Thursday

Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 89.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 60.
Mostly Clear
Lo 62 °F Hi 84 °F Lo 62 °F Hi 90 °F Lo 65 °F Hi 91 °F Lo 65 °F Hi 89 °F Lo 60 °F

Heat Advisory
 

Overnight
 
 Mostly clear early, then becoming cloudy, with a low around 62. Southwest wind around 5 mph.
Monday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 62. Southwest wind 5 to 10 mph becoming light in the evening.
Tuesday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 90. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
 
 Partly cloudy, with a low around 65. Southwest wind 5 to 10 mph becoming light after midnight.
Wednesday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 91.
Wednesday Night
 
 Mostly clear, with a low around 65.
Thursday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 89.
Thursday Night
 
 Mostly clear, with a low around 60.
Friday
 
 Sunny, with a high near 85.
Friday Night
 
 Mostly clear, with a low around 59.
Saturday
 
 Mostly sunny, with a high near 83.
Saturday Night
 
 Partly cloudy, with a low around 59.
Sunday
 
 Mostly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Rowland Heights CA.