Local Forecast for Orange County, CA Currently 67.0°F HI: 79.0°F LO: 63.0°F Extended Forecast Overnight Patchy fog. Otherwise, mostly cloudy, with a low around 63. Calm wind. Saturday Patchy fog before 11am. Otherwise, partly sunny, with a high near 79. Light southwest wind increasing to 5 to 10 mph in the afternoon. Saturday Night Mostly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening. Sunday Mostly cloudy, then gradually becoming sunny, with a high near 77. Light west wind increasing to 5 to 10 mph in the afternoon. Sunday Night Increasing clouds, with a low around 60. West wind around 5 mph becoming calm in the evening. Monday Mostly cloudy, then gradually becoming sunny, with a high near 76. Monday Night Increasing clouds, with a low around 61. Tuesday Mostly cloudy, then gradually becoming sunny, with a high near 74. Tuesday Night Increasing clouds, with a low around 61. Wednesday Mostly cloudy, then gradually becoming sunny, with a high near 74. Wednesday Night Partly cloudy, with a low around 59. Thursday Mostly sunny, with a high near 79. Thursday Night Mostly clear, with a low around 61.