San Francisco Bay - Castro Point Weather Forecast

    • 52
    • 58

    Rain Showers

    • 50
    • 55

    Rain Showers

    • 50
    • 58

    Mostly Sunny

    • 50
    • 59

    Mostly Sunny

    • 51
    • 59

    Partly Sunny

    • 52
    • 63

    Mostly Sunny

Today 11 Apr San Francisco Bay Shoreline

Breezy. A chance of rain in the Morning, then Showers and a chance of Thunderstorms in the afternoon. Highs in the mid 60s. South Winds 5 to 15 Mph increasing to 20 to 30 Mph in the afternoon.

Tonight 11 Apr San Francisco Bay Shoreline

Breezy. A chance of Thunderstorms in the evening. Showers. A slight chance of Thunderstorms after midnight. Lows around 50. South Winds 20 to 30 Mph decreasing to 10 to 20 Mph after midnight.

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San Francisco Bay - Castro Point Temperature Statistics

April Temperature

Novato / Gnoss Field (16.2 miles)

  • Lowest 3 April, 2026

    42.8 °F

  • Average April

    59.7 °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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