San Francisco Bay - Guadalupe Slough Entrance Weather Forecast

    • 49
    • 60

    Patchy Fog

    • 54
    • 62

    Rain

    • 56
    • 58

    Rain

    • 54
    • 59

    Rain

    • 51
    • 57

    Rain

    • 49
    • 57

    Rain

    • 49
    • 56

    Rain

Today 18 Dec San Francisco Bay Shoreline

Partly cloudy. Highs around 60. Light Winds.

Tonight 18 Dec San Francisco Bay Shoreline

Mostly cloudy. Patchy fog. A slight chance of rain. Lows in the lower 50s. West Winds around 5 Mph. Becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Guadalupe Slough Entrance Temperature Statistics

December Temperature

Palo Alto Airport (4.3 miles)

  • Lowest 13 December, 2025

    33.8 °F

  • Average December

    49.2 °F

  • Highest 3 December, 2025

    64.4 °F

Climate (2020–Present)

Palo Alto Airport (4.3 miles)

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  • Average Low 2020–2025

    50.7 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    67.1 °F
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