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: Partly cloudy early, then becoming cloudy, with a low around 59. 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 83. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63. Southwest wind 5 to 10 mph becoming light after midnight.
Patchy Fog
 Tuesday

Tuesday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 90. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Southwest wind 5 to 10 mph becoming light after midnight.
Patchy Fog
 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 92.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 66.
Partly Cloudy
 Thursday

Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 58.
Mostly Clear
Lo 59 °F Hi 83 °F Lo 63 °F Hi 90 °F Lo 66 °F Hi 92 °F Lo 66 °F Hi 90 °F Lo 58 °F

Heat Advisory
 

Overnight
 
 Partly cloudy early, then becoming cloudy, with a low around 59. Southwest wind around 5 mph.
Monday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63. Southwest wind 5 to 10 mph becoming light after midnight.
Tuesday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 90. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
 
 Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Southwest wind 5 to 10 mph becoming light after midnight.
Wednesday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 92.
Wednesday Night
 
 Partly cloudy, with a low around 66.
Thursday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90.
Thursday Night
 
 Mostly clear, with a low around 58.
Friday
 
 Mostly sunny, with a high near 82.
Friday Night
 
 Mostly clear, with a low around 58.
Saturday
 
 Mostly sunny, with a high near 80.
Saturday Night
 
 Partly cloudy, with a low around 57.
Sunday
 
 Mostly sunny, with a high near 73.

 

Forecast from NOAA-NWS for Rowland Heights CA.