Rancho Santa Margarita, CA Weather

Orange County9:53 PM PDT33.64°N, 117.60°WElevation 948 ft

Current conditions

Mostly Clear
65°
Mostly Clear
Feels like 65°
High 78° Monday·Low 60° tonight
WindNW 5 mph
Humidity71%
Dew point55°
Cloud cover24%
UV index0 Low
Sunrise7:04 AM
Sunset6:06 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Tonight

    Mostly clear, with a low around 60. North wind 0 to 5 mph.

  • Monday

    Sunny, with a high near 78. Northwest wind 0 to 10 mph.

  • Monday Night

    Mostly clear, with a low around 56. North wind 0 to 5 mph.

National Weather Service forecast updated 9 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 65°
  2. 10 PM Mostly Clear 64°
  3. 11 PM Mostly Clear 63°
  4. Mon12 AM Mostly Clear 62°
  5. 1 AM Mostly Clear 62°
  6. 2 AM Mostly Clear 61°
  7. 3 AM Mostly Clear 61°
  8. 4 AM Mostly Clear 61°
  9. 5 AM Mostly Clear 60°
  10. 6 AM Sunny 60°
  11. 7 AM Sunny 60°
  12. 8 AM Sunny 61°
  13. 9 AM Sunny 65°
  14. 10 AM Sunny 69°
  15. 11 AM Sunny 74°
  16. 12 PM Sunny 75°
  17. 1 PM Sunny 76°
  18. 2 PM Sunny 77°
  19. 3 PM Sunny 76°
  20. 4 PM Sunny 76°
  21. 5 PM Sunny 75°
  22. 6 PM Mostly Clear 70°
  23. 7 PM Mostly Clear 66°
  24. 8 PM Mostly Clear 64°

Daily forecast

Details
  1. TodayOct 25 Sunny Sunny60°79°
  2. MonOct 26 Sunny Sunny56°78°
  3. TueOct 27 Sunny Sunny54°74°
  4. WedOct 28 Patchy Fog then Mostly Sunny Patchy Fog then Mostly Sunny56°71°
  5. ThuOct 29 Mostly Cloudy Mostly Cloudy21%57°70°
  6. FriOct 30 Slight Chance Rain Showers Slight Chance Rain Showers26%55°69°
  7. SatOct 31 Chance Rain Showers Chance Rain Showers66%54°67°
  8. SunNov 1 Showers Showers0.42 in51°66°
  9. MonNov 2 Mostly clear Mostly clear51°68°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news in California

More weather news

Air quality

40
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • SunGood (45)
  • MonGood (44)

Saddleback Vly, CA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:04 AM
Sunset 6:06 PM
Daylight 11 h 2 min (−1 min 55 s tomorrow)
Full Moon · 100% lit
Moonrise 5:33 PM Moonset 6:32 AM
Full moon Oct 26 New moon Nov 9

Nearby

Forecasters' discussion

From the National Weather Service office in SGX, issued 4 hrs ago

Synopsis

Near to slightly above average temperatures through Monday, then gradually cooler for the middle to end of the week. Unsettled weather expected for the end of the week with increased winds and chance of precipitation. Tides will remain elevated through much of this week.

Discussion

FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

...UPDATED AVIATION DISCUSSION...

Visible satellite at 11 AM was showing clear skies across Southern California. Highs today are expected to be in the upper 70s to upper 80s for most locations, with spots in the mountains in the 50 to 60 degree range. The pressure gradient between San Diego and Tonopah, NV was still weakly offshore this morning. Onshore flow is expected to return Monday as an upper level low pressure system moves into the Pacific Northwest. Marine layer low clouds have a small chance of returning to some coastal locations Monday morning, with higher confidence for low clouds returning by Tuesday morning. Once marine layer low clouds and areas of fog return, they will be present each night and morning through the week.

High temperatures Monday will be similar to today's. High temperatures in coastal areas will be 5 to 10 degrees above average, with temperatures closer to average further inland. By Wednesday, forecast has widespread below average temperatures. Temperatures are forecast to remain below average through the remainder of the week.

Global ensembles continue to indicate unsettled weather for the end of the week into the first days of November. There remains a lot of uncertainty in the details, which will ultimately be dictated by how far south the upper level low off the coast of the Pacific Northwest tracks. Rain chances are in the forecast as early as Friday. In addition to precipitation, cooler, cloudier, and windier conditions are expected.

Aviation

260000Z...Mostly VFR conditions across the region through the period. SCT cumulus over mts through this evening. 20% chance for very patchy low clouds based 500-1000 ft MSL over nearshore waters and along the coastline tonight. No impacts expected for coastal TAF sites at this time.

Marine

Winds gusts near 20 knots expected in the outer coastal waters Monday afternoon and evening. Otherwise, no hazardous marine conditions are expected through Thursday.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use. How to use Weather