Weather forecast for: Foster City CA
Last Update: 11:27 pm PDT Sep 22, 2026
Overnight: Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm.
Wednesday: Partly sunny, then gradually becoming sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Wednesday Night: Mostly clear, with a low around 58. West wind 5 to 7 mph becoming calm in the evening.
Thursday: Mostly sunny, with a high near 82. Light west wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night: Partly cloudy, with a low around 60. West wind 7 to 13 mph, with gusts as high as 20 mph.
Friday: Mostly sunny, with a high near 75.
Friday Night: Mostly clear, with a low around 55.
Saturday: Mostly sunny, with a high near 76.
Saturday Night: Partly cloudy, with a low around 55.
Sunday: Mostly sunny, with a high near 72.
Sunday Night: Mostly clear, with a low around 55.
Monday: Sunny, with a high near 78.
Monday Night: Mostly clear, with a low around 56.
Tuesday: Sunny, with a high near 80.
WeatherWorld.com
