San Francisco Bay - Red Rock Island Weather Forecast

    • 58
    • 63

    Increasing Clouds

    • 58
    • 66

    Decreasing Clouds

    • 60
    • 69

    Partly Sunny

    • 58
    • 69

    Partly Sunny

    • 56
    • 64

    Mostly Sunny

    • 56
    • 63

    Mostly Sunny

    • 55
    • 62

    Mostly Sunny

Today 24 Aug San Francisco Bay Shoreline

Sunny. Highs in the 70s to lower 80s. West Winds 5 to 15 Mph.

Tonight 24 Aug San Francisco Bay Shoreline

Partly cloudy late in the evening then becoming mostly cloudy. Haze late in the evening. Lows in the upper 50s. West Winds 5 to 10 Mph.

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San Francisco Bay - Red Rock Island Temperature Statistics

August Temperature

Novato / Gnoss Field (16.2 miles)

  • Lowest 10 August, 2026

    51.8 °F

  • Average August

    65.8 °F

  • Highest 2 August, 2026

    98.6 °F

Climate (2021–2026)

Novato / Gnoss Field (16.2 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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