| National Weather Service Forecast for:
Rancho Santa Margarita CA Issued by: National Weather Service San Diego, CA |
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| Updated: 1:04 am PST Feb 2, 2026 | ||||||||||||||||||
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| Overnight |
Partly cloudy, with a low around 55. Calm wind. |
| Monday |
Mostly sunny, with a high near 75. Calm wind becoming southwest around 5 mph in the afternoon. |
| Monday Night |
Mostly clear, with a low around 56. Calm wind becoming northeast around 5 mph after midnight. |
| Tuesday |
Sunny, with a high near 81. Northeast wind around 5 mph becoming calm. |
| Tuesday Night |
Clear, with a low around 59. Northeast wind around 15 mph, with gusts as high as 25 mph. |
| Wednesday |
Sunny, with a high near 85. |
| Wednesday Night |
Mostly clear, with a low around 61. |
| Thursday |
Mostly sunny, with a high near 81. |
| Thursday Night |
Mostly cloudy, with a low around 57. |
| Friday |
Partly sunny, with a high near 74. |
| Friday Night |
Partly cloudy, with a low around 55. |
| Saturday |
Sunny, with a high near 75. |
| Saturday Night |
Mostly clear, with a low around 55. |
| Sunday |
Sunny, with a high near 78. |
Forecast from NOAA-NWS for Rancho Santa Margarita CA.
