Local Forecast for Orange County, CA Currently 61.0°F HI: 79.0°F LO: 51.0°F Extended Forecast Today Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon. Tonight Mostly clear, with a low around 51. West wind around 5 mph becoming calm. Monday Sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon. Monday Night Mostly clear, with a low around 52. Calm wind becoming south around 5 mph. Tuesday Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon. Tuesday Night Mostly clear, with a low around 54. Wednesday Sunny, with a high near 79. Wednesday Night Mostly clear, with a low around 54. Thursday Sunny, with a high near 75. Thursday Night Mostly clear, with a low around 55. Friday Sunny, with a high near 73. Friday Night Patchy fog. Otherwise, partly cloudy, with a low around 53. Saturday Patchy fog. Otherwise, mostly sunny, with a high near 71.