Local Forecast for Orange County, CA Currently 67.0°F HI: 78.0°F LO: 62.0°F Extended Forecast Overnight Mostly cloudy, with a low around 62. Calm wind. Wednesday Cloudy through mid morning, then gradual clearing, with a high near 78. Light west wind becoming southwest 5 to 10 mph in the afternoon. Wednesday Night Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light in the evening. Thursday Cloudy through mid morning, then gradual clearing, with a high near 77. Light west wind increasing to 5 to 10 mph in the afternoon. Thursday Night Increasing clouds, with a low around 60. West wind 5 to 10 mph becoming light southwest in the evening. Friday Partly sunny, then gradually becoming sunny, with a high near 78. Friday Night Increasing clouds, with a low around 61. Saturday Partly sunny, then gradually becoming sunny, with a high near 81. Saturday Night Mostly clear, with a low around 63. Sunday Mostly sunny, with a high near 82. Sunday Night Partly cloudy, with a low around 64. Monday Mostly sunny, with a high near 82. Monday Night Partly cloudy, with a low around 65.