San Francisco Bay - Belmont Slough Entrance Weather Forecast

    • 50
    • 81

    Becoming Sunny

    • 50
    • 76

    Mostly Sunny

    • 53
    • 79

    Partly Sunny

    • 50
    • 71

    Slight Chance Rain

    • 48
    • 65

    Chance Rain

    • 48
    • 67

    Rain Likely

    • 46
    • 64

    Chance Rain

Today 27 Mar San Francisco Bay Shoreline

Partly cloudy. Highs in the upper 70s to mid 80s. Northwest Winds 5 to 10 Mph.

Tonight 27 Mar San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly clear. Lows around 50. West Winds 5 to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Belmont Slough Entrance Temperature Statistics

March Temperature

San Carlos Airport (1.9 miles)

  • Lowest 11 March, 2026

    46.4 °F

  • Average March

    59.3 °F

  • Highest 20 March, 2026

    87.8 °F

Climate (2021–Present)

San Carlos Airport (1.9 miles)

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  • Average Low 2021–2026

    51.5 °F

  • Average 2021–2026

    56.8 °F

  • Average High 2021–2026

    68.3 °F
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