San Francisco Bay - Red Rock Island Weather Forecast

    • 50
    • 60

    Mostly Sunny

    • 51
    • 58

    Mostly Sunny

    • 50
    • 60

    Partly Sunny

    • 52
    • 62

    Sunny

    • 51
    • 65

    Mostly Sunny

    • 53
    • 64

    Partly Sunny

Today 13 Apr San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the mid 60s. Northwest Winds up to 5 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 13 Apr San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 40s. West Winds 10 to 20 Mph.

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San Francisco Bay - Red Rock Island Temperature Statistics

April Temperature

Novato / Gnoss Field (16.2 miles)

  • Lowest 3 April, 2026

    42.8 °F

  • Average April

    59.6 °F

  • Highest 5 April, 2026

    86 °F

Climate (2021–Present)

Novato / Gnoss Field (16.2 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    72.6 °F
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