Weather forecast for: Cupertino CA
Last Update: 2:36 am PDT Sep 21, 2026
Today: Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 77. Calm wind becoming north 5 to 7 mph in the afternoon.
Tonight: Patchy fog after 5am. Otherwise, increasing clouds, with a low around 55. Light and variable wind.
Tuesday: Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night: Mostly clear, with a low around 56. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday: Sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night: Mostly clear, with a low around 60.
Thursday: Sunny, with a high near 89.
Thursday Night: Partly cloudy, with a low around 59.
Friday: Mostly sunny, with a high near 82.
Friday Night: Mostly clear, with a low around 56.
Saturday: Sunny, with a high near 81.
Saturday Night: Mostly clear, with a low around 54.
Sunday: Mostly sunny, with a high near 80.
WeatherWorld.com
City of Cupertino, CA
