Princeton, California Weather
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Click for Dense Fog Advisory for Princeton, California
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Weather Forecast for Princeton, California : San Mateo County
Issued: 3:08 am PDT Sep 16, 2025 Latitude: 37.5049409 Longitude: -122.4869222 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Fog on Overnight Morning Fog on Tuesday Morning Fog on Wednesday Morning Fog on Thursday 10% chance of rain on Friday Morning Fog on Saturday Patchy Fog on Sunday Patchy Fog on Monday
Low: 57°F High: 71°F High: 71°F High: 66°F High: 67°F High: 68°F High: 69°F High: 70°F
Low: 56°F Low: 57°F Low: 57°F Low: 58°F Low: 56°F Low: 57°F  
Fog Morning Fog Morning Fog Morning Fog Rain Morning Fog Patchy Fog Patchy Fog
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Current Conditions at
SAN CARLOS - (KSQL)
68°
Clear
as of 2:55 AM PDST
Rel. Humidity: 68%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
OAKLAND - (KOAK)
63°
Clear
as of 2:53 AM PDST
Rel. Humidity: 88%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
3 MPH
330° Northwest
Cloud Level(s): Clear
Fog on Overnight Overnight... Areas of dense fog. Otherwise, mostly cloudy, with a low around 57. Calm wind.
Morning Fog on Tuesday Tuesday... Areas of dense fog before 10am. Otherwise, mostly sunny, with a high near 71. Calm wind becoming west southwest around 6 mph in the afternoon.
Morning Fog on Tuesday Night Tuesday Night... Patchy fog after 4am. Otherwise, partly cloudy, with a low around 56. Calm wind.
Morning Fog on Wednesday Wednesday... Patchy fog before 8am. Otherwise, mostly sunny, with a high near 71. Calm wind becoming west northwest around 6 mph in the afternoon.
Morning Fog on Wednesday Night Wednesday Night... Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 57. West northwest wind around 6 mph becoming calm in the evening.
Morning Fog on Thursday Thursday... Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 66.
20% chance of thunderstorms Thursday Night Thursday Night... A slight chance of showers and thunderstorms. Cloudy, with a low around 57. Chance of precipitation is 20%.
10% chance of rain Friday Friday... A slight chance of showers before 11am. Mostly cloudy, with a high near 67.
Patchy Fog on Friday Night Friday Night... Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 58.
Morning Fog on Saturday Saturday... Areas of fog before 10am. Otherwise, partly sunny, with a high near 68.
Patchy Fog on Saturday Night Saturday Night... Patchy fog. Otherwise, mostly cloudy, with a low around 56.
Patchy Fog on Sunday Sunday... Patchy fog. Otherwise, mostly sunny, with a high near 69.
Patchy Fog on Sunday Night Sunday Night... Patchy fog. Otherwise, partly cloudy, with a low around 57.
Patchy Fog on Monday Monday... Patchy fog. Otherwise, mostly sunny, with a high near 70.
Sun Almanac for Princeton, California
Sunrise: 06:53 AM
Sunset: 7:16 PM
Civil Sunrise:06:27 AM
Civil Sunset: 7:42 PM
Nautical Sunrise: 05:56 AM
Nautical Sunset: 8:13 PM
Astro Sunrise: 05:25 AM
Astro Sunset: 8:44 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.