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Bonsall, CA Weather Forecast
Bonsall, CA Weather Forecast Date: 1215 AM PDT Thu Aug 13 2026
The area/counties/county of: San Diego County Valleys, including the cities of: Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway.or toggle through each period.
Today... Mostly cloudy. Highs 78 to 83. Areas of winds southwest to 10 mph.
Tonight... Mostly cloudy. Patchy fog overnight. Lows 59 to 64. Areas of winds west to 10 mph in the evening becoming light.
Friday... Partly cloudy with patchy fog in the morning...Becoming mostly sunny. Highs 79 to 82 in the western valleys to 81 to 86 near the foothills. Light winds.
Friday Night... Mostly clear. Lows 58 to 63. Light winds.
Saturday... Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 80 to 84 in the western valleys to 83 to 88 near the foothills. Light winds becoming west 10 mph in the afternoon.
Saturday Night... Mostly clear in the evening...Becoming partly cloudy. Lows 59 to 64.
Sunday... Partly cloudy with patchy fog in the morning...Becoming mostly sunny. Highs 81 to 85 in the western valleys to 85 to 90 near the foothills.
Sunday Night... Mostly clear in the evening...Becoming partly cloudy. Lows 60 to 65.
Monday... Partly cloudy in the morning...Becoming mostly sunny. Highs 83 to 87 in the western valleys to 87 to 92 near the foothills.
Monday Night... Mostly clear. Lows 61 to 66.
Tuesday... Partly cloudy in the morning...Becoming mostly sunny. Highs 84 to 89 in the western valleys to 89 to 94 near the foothills.
Tuesday Night... Mostly clear. Lows 62 to 67.
POP = Probability of Precipitation
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