| National Weather Service Forecast for:
Spring Valley CA Issued by: National Weather Service San Diego, CA |
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| Updated: 12:05 pm PDT Jun 18, 2026 | ||||||||||||||||||
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| Tonight |
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 59. West wind 5 to 10 mph becoming light after midnight. |
| Juneteenth |
Mostly cloudy through mid morning, then gradual clearing, with a high near 74. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph. |
| Friday Night |
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light and variable after midnight. |
| Saturday |
Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 74. Light and variable wind becoming west 5 to 10 mph in the morning. |
| Saturday Night |
Increasing clouds, with a low around 56. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. |
| Sunday |
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 74. |
| Sunday Night |
Increasing clouds, with a low around 57. |
| Monday |
Partly sunny, then gradually becoming sunny, with a high near 75. |
| Monday Night |
Mostly clear, with a low around 58. |
| Tuesday |
Mostly sunny, with a high near 78. |
| Tuesday Night |
Mostly clear, with a low around 61. |
| Wednesday |
Sunny, with a high near 81. |
| Wednesday Night |
Mostly clear, with a low around 63. |
| Thursday |
Sunny, with a high near 82. |
Forecast from NOAA-NWS for Spring Valley CA.