Hazardous Weather Conditions
Current conditions at
CW5283 Foothill Ranch (C5283)
Lat: 33.685°NLon: 117.65583°WElev: 986.91ft.NA
81°F
27°C
| Humidity | 52% |
| Wind Speed | SW 0 MPH |
| Barometer | 29.8 in (1009.14 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | NA |
| Heat Index | 82°F (28°C) |
| Last update | 09 Aug 10:25 AM PDT |
Extended Forecast for
Rancho Santa Margarita CA
Heat Advisory August 9, 10:38am until August 9, 08:00pm
NOW until 8:00pm Sun

Heat Advisory
Today

High: 91 °F
Sunny
Tonight
Low: 65 °F
Partly Cloudy
then Patchy
Dense FogMonday
High: 89 °F
Patchy Dense
Fog then
Mostly SunnyMonday Night

Low: 64 °F
Patchy Fog
Tuesday
High: 87 °F
Patchy Fog
then Mostly
SunnyTuesday Night

Low: 63 °F
Patchy Fog
Wednesday
High: 85 °F
Patchy Fog
then SunnyWednesday Night

Low: 62 °F
Increasing
Clouds
Detailed Forecast
Today
Sunny, with a high near 91. West wind around 5 mph.
Tonight
Patchy dense fog after 2am. Otherwise, partly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening.
Monday
Patchy dense fog before 11am. Otherwise, mostly sunny, with a high near 89. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63.
Wednesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85.
Wednesday Night
Increasing clouds, with a low around 62.
Thursday
Partly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Rancho Santa Margarita CA
33.64°N 117.61°W (Elev. 896 ft)
33.64°N 117.61°W (Elev. 896 ft)
12:31 am PDT Aug 9, 2026
10am PDT Aug 9, 2026-6pm PDT Aug 15, 2026



