San Francisco Bay - Belmont Slough Entrance Weather Forecast

    • 59
    • 80

    Decreasing Clouds

    • 60
    • 78

    Partly Sunny

    • 59
    • 76

    Mostly Cloudy

    • 59
    • 75

    Partly Sunny

    • 59
    • 72

    Mostly Sunny

    • 59
    • 73

    Partly Sunny

Today 18 Aug San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Highs in the 70s to lower 80s. West Winds up to 5 Mph increasing to northwest 10 to 20 Mph in the afternoon.

Tonight 18 Aug San Francisco Bay Shoreline

Mostly cloudy. Lows in the upper 50s. West Winds up to 5 Mph.

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  • Temperature Real-Time

San Francisco Bay - Belmont Slough Entrance Temperature Statistics

August Temperature

San Carlos Airport (1.9 miles)

  • Lowest 1 August, 2026

    59 °F

  • Average August

    64 °F

  • Highest 2 August, 2026

    87.8 °F

Climate (2021–2026)

San Carlos Airport (1.9 miles)

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  • Average Low 2021–2026

    51.8 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    68.3 °F
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