Weather WorldFoster City, CA 7-Day Weather Forecast
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Foster City Weather Forecast
Foster City, CA Weather Forecast Date: 902 PM PDT Tue Sep 22 2026
Weather forecast for Foster City, CA
Tonight Lo: 55°F Lo: 13°C |
Tonight... Mostly clear late in the evening then becoming partly cloudy. Lows in the mid 50s. Southwest winds 5 to 10 mph. |
Wed Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Wednesday... Partly cloudy in the morning then becoming sunny. Highs in the upper 70s to mid 80s. Light winds...Becoming northwest 10 to 20 mph in the afternoon. |
| Thu Hi: 76°FHi: 24°C Lo: 60°F Lo: 16°C |
Thursday... Partly cloudy. Highs in the 70s to mid 80s. Light winds...Becoming west 10 to 20 mph in the afternoon. |
| Fri Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Friday... Mostly cloudy in the morning then becoming partly cloudy. Highs in the 70s. |
| Sat Hi: 77°FHi: 25°C Lo: 55°F Lo: 13°C |
Saturday... Partly cloudy. Highs in the mid 60s to upper 70s. Lows in the mid 50s. |
| Sun Hi: 77°FHi: 25°C Lo: 55°F Lo: 13°C |
Sunday... Partly cloudy. Highs in the mid 60s to upper 70s. Lows in the mid 50s. |
| Sun Hi: 77°FHi: 25°C Lo: 55°F Lo: 13°C |
Sunday... Partly cloudy. Highs in the mid 60s to upper 70s. Lows in the mid 50s. |
Mon Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Monday... Mostly clear. Lows in the mid 50s. Highs in the 60s to upper 70s. |
| Tue Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Tuesday... Mostly clear. Lows in the mid 50s. Highs in the 60s to upper 70s. |
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