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City of San Diego, CaliforniaSan Ysidro, CA 7-Day Weather Forecast
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San Ysidro Weather Forecast
San Ysidro, CA Weather Forecast Date: 1202 AM PDT Wed Oct 07 2026
Weather forecast for San Ysidro, CA
Today Hi: 96°FHi: 36°C Lo: 68°F Lo: 20°C |
Today... Mostly sunny. Highs 85 to 90 near the coast to 93 to 97 inland. Light winds becoming west 10 mph this afternoon. |
Thu Hi: 93°FHi: 34°C Lo: 67°F Lo: 19°C |
Thursday... Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Local visibility one quarter mile or less at times in the morning. Highs 82 to 87 near the coast to 90 to 94 inland. Light winds becoming west 10 mph in the afternoon. |
| Fri Hi: 88°FHi: 31°C Lo: 66°F Lo: 19°C |
Friday... Partly cloudy with patchy fog in the morning...Becoming mostly sunny. Highs 79 to 84 near the coast to 86 to 89 inland. Light winds becoming west 10 mph in the afternoon. |
| Sat Hi: 83°FHi: 28°C Lo: 65°F Lo: 18°C |
Saturday... Cloudy in the morning...Becoming partly cloudy. Patchy fog in the morning. Highs 75 to 80 near the coast to 80 to 84 inland. |
Sun Hi: 77°FHi: 25°C Lo: 62°F Lo: 17°C |
Sunday... Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers in the afternoon. Highs 71 to 75 near the coast to 75 to 78 inland. |
| Columbus Day Hi: 73°FHi: 23°C Lo: 58°F Lo: 14°C |
Columbus Day... Mostly cloudy with a chance of showers in the morning, then partly cloudy with a slight chance of showers in the afternoon. Highs 71 to 74. |
| Tue Hi: 76°FHi: 24°C |
Tuesday... Partly cloudy. A slight chance of showers in the morning. Highs 70 to 74 near the coast to 74 to 77 inland. |
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