10-Day Weather Forecast - Foster City, CA

Mostly cloudy. Highs in the mid 70s to lower 80s. West winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.

Mostly cloudy. Lows in the lower 60s. West winds 10 to 20 mph.

Mostly cloudy in the morning then becoming partly cloudy. A slight chance of rain in the morning. Highs in the 60s to upper 70s. West winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon. Chance of rain 20 percent.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.

Mostly cloudy in the morning then becoming sunny. Highs in the upper 60s to mid 70s.

Mostly clear. Lows in the upper 50s.

Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s to mid 70s.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.

Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s to lower 70s.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.

Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 60s to lower 70s.

Partly cloudy. Low temperature around 56F. Dew point will be around 54F with an average humidity of 85%. Winds will be 7 mph from the W.

Sunny. High temperature around 71F. Dew point will be around 57F with an average humidity of 73%. Winds will be 7 mph from the W.

Clear. Low temperature around 58F. Dew point will be around 55F with an average humidity of 79%. Winds will be 6 mph from the W.

Sunny. High temperature around 72F. Dew point will be around 59F with an average humidity of 69%. Winds will be 6 mph from the W.

Clear. Low temperature around 59F. Dew point will be around 56F with an average humidity of 76%. Winds will be 6 mph from the W.

Sunny. High temperature around 73F. Dew point will be around 59F with an average humidity of 65%. Winds will be 7 mph from the W.

Clear. Low temperature around 60F. Dew point will be around 55F with an average humidity of 72%. Winds will be 6 mph from the W.