Foster City, CA 7-Day Weather Forecast

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Foster City, CA 7-Day Weather Forecast

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Foster City CA weather  - Mostly Clear - 56°F
Mostly Clear
56°F
Updated 8:57 pm
Feels Like 55°F
Humidity 86%
Wind W 15 mph
Barometer  30.1 in
Dew Point 52°F
Foster City CA weather  - Mostly Clear - 13°C
Mostly Clear
13°C
Updated 8:57 pm
Feels Like 13°C
Humidity 86%
Wind W 24 km/h
Barometer  101.9 kPa
Dew Point 11°C
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Foster City Weather Forecast

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Foster City, CA Weather Forecast Date: 501 PM PST Mon Mar 02 2026

Weather forecast for Foster City, CA


Tonight
Foster City CA Weather for Tonight - Patchy Fog
Lo: 51°F
Lo: 11°C
Tonight... Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the lower 50s. West winds up to 5 mph.
Tue
Foster City CA Weather for Tuesday - Patchy Fog
Hi: 65°FHi: 18°C
Lo: 50°F
Lo: 10°C
Tuesday... Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 60s. West winds up to 5 mph increasing to 5 to 15 mph in the afternoon.
Wed
Foster City CA Weather for Wednesday - Mostly Cloudy
Hi: 65°FHi: 18°C
Lo: 45°F
Lo: 7°C
Wednesday... Mostly cloudy in the morning then becoming sunny. Highs in the mid 60s. West winds 10 to 20 mph.
Thu
Foster City CA Weather for Thursday - Sunny
Hi: 65°FHi: 18°C
Lo: 49°F
Lo: 9°C
Thursday... Sunny. Highs in the mid 60s.
Fri
Foster City CA Weather for Friday - Sunny
Hi: 69°FHi: 21°C
Lo: 51°F
Lo: 11°C
Friday... Sunny. Highs in the upper 60s.
Sat
Foster City CA Weather for Saturday - Clear
Hi: 73°FHi: 23°C
Lo: 51°F
Lo: 11°C
Saturday... Clear. Lows in the lower 50s. Highs in the lower to mid 70s.
Sat
Foster City CA Weather for Saturday - Clear
Hi: 73°FHi: 23°C
Lo: 51°F
Lo: 11°C
Saturday... Clear. Lows in the lower 50s. Highs in the lower to mid 70s.
Sun
Foster City CA Weather for Sunday - Sunny
Hi: 70°FHi: 21°C
Lo: 51°F
Lo: 11°C
Sunday... Sunny. Highs in the upper 60s to mid 70s.

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