Weather WorldMonarch Beach, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Monarch Beach Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  | | | | | | | |  | |
| Partly Cloudy | Partly Cloudy | Patchy Fog | Patchy Fog | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy |
| Lo: 64°FLo: 18°C | Hi: 73°FHi: 23°C | Lo: 62°FLo: 17°C | Hi: 76°FHi: 24°C | Lo: 63°FLo: 17°C | Hi: 75°FHi: 24°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 65°FLo: 18°C | Hi: 74°FHi: 23°C | Lo: 64°FLo: 18°C | Hi: 74°FHi: 23°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1221 PM PDT Wed Sep 16 2026 
Monarch Beach Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Monarch Beach Weather Map
Monarch Beach Quick Facts
Monarch Beach Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 427 PM PDT Wed Sep 16 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
The marine layer was around 3500 ft deep this morning, with low clouds filling in the coastal basin. Visible satellite from this morning even showed low clouds through the Cajon Pass. At 11 AM, satellite was still showing patchy low clouds along the coast and portions of the western valleys. The marine layer is expected to ...