Weather WorldO'Brien, CA 7-Day Weather Forecast
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O'Brien Weather Forecast
O'Brien, CA Weather Forecast Date: 201 AM PDT Sat Sep 05 2026
Weather forecast for O'Brien, CA
Today Hi: 73°FHi: 23°C Lo: 51°F Lo: 11°C |
Today... Sunny. Highs 67 to 77. Light winds becoming south up to 10 mph in the afternoon. |
Sun Hi: 72°FHi: 22°C Lo: 49°F Lo: 9°C |
Sunday... Partly cloudy. Highs 66 to 76. Light winds. |
| Labor Day Hi: 79°FHi: 26°C Lo: 54°F Lo: 12°C |
Labor Day... Sunny, warmer. Highs 73 to 83. Northeast winds up to 10 mph with gusts to around 20 mph. |
| Tue Hi: 82°FHi: 28°C Lo: 56°F Lo: 13°C |
Tuesday... Mostly sunny. Highs 76 to 86. |
Wed Hi: 85°FHi: 29°C Lo: 59°F Lo: 15°C |
Wednesday... Partly cloudy with a slight chance of rain. Highs 79 to 89. |
| Thu Hi: 86°FHi: 30°C Lo: 59°F Lo: 15°C |
Thursday... Partly cloudy with a slight chance of rain. Highs 80 to 90. |
| Fri Hi: 83°FHi: 28°C Lo: 59°F Lo: 15°C |
Friday... Partly cloudy with a slight chance of rain. Lows 53 to 63. Highs 77 to 87. |
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