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Foster City, CA 7-Day Night Weather Forecast
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Foster City, CA Weather Forecast
Foster City, CA Weather Forecast Date: 902 PM PDT Mon Sep 28 2026
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Rest of Tonight... Mostly clear. Lows in the mid 50s. South winds 5 to 10 mph.
Tuesday... Sunny. Highs in the upper 70s to mid 80s. West winds up to 5 mph increasing to 10 to 20 mph in the afternoon.
Tuesday Night... Mostly clear. Lows in the upper 50s. Southwest winds 10 to 20 mph...Becoming south 5 to 10 mph after midnight.
Wednesday... Sunny. Highs in the 80s. Light winds...Becoming west 5 to 10 mph in the afternoon.
Wednesday Night... Mostly clear. Lows in the upper 50s. West winds 10 to 15 mph...Becoming southwest up to 5 mph after midnight.
Thursday... Partly cloudy in the morning then becoming sunny. Highs in the upper 70s to mid 80s.
Thursday Night... Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.
Friday... Partly cloudy. Highs in the 70s to mid 80s. Lows around 60.
Saturday... Partly cloudy. Highs in the 70s to mid 80s. Lows around 60.
Saturday Night... Mostly clear. Lows in the lower 60s.
Sunday... Partly cloudy in the morning then becoming sunny. Highs in the 70s to mid 80s.
Sunday Night... Mostly clear. Lows in the lower 60s.
POP = Probability of Precipitation
Foster City Radar Loop
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