| National Weather Service Forecast for:
Foster City CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 11:44 pm PST Feb 1, 2026 | ||||||||||||||||||
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| Overnight |
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 46. West northwest wind 3 to 5 mph. |
| Monday |
Areas of fog before 8am. Otherwise, sunny, with a high near 65. Northwest wind 3 to 6 mph. |
| Monday Night |
Partly cloudy, with a low around 45. Calm wind. |
| Tuesday |
Sunny, with a high near 69. Calm wind becoming north northeast around 6 mph in the morning. |
| Tuesday Night |
Clear, with a low around 46. Light east northeast wind. |
| Wednesday |
Sunny, with a high near 69. |
| Wednesday Night |
Mostly clear, with a low around 47. |
| Thursday |
Sunny, with a high near 68. |
| Thursday Night |
Mostly cloudy, with a low around 49. |
| Friday |
Mostly sunny, with a high near 66. |
| Friday Night |
Patchy fog. Otherwise, partly cloudy, with a low around 49. |
| Saturday |
Patchy fog. Otherwise, mostly sunny, with a high near 65. |
| Saturday Night |
Partly cloudy, with a low around 49. |
| Sunday |
A slight chance of rain. Mostly sunny, with a high near 65. |
Forecast from NOAA-NWS for Foster City CA.