San Francisco Bay - Sulphur Creek Entrance Weather Forecast

    • 56
    • 69

    Chance Rain Showers

    • 54
    • 65

    Rain Showers Likely

    • 50
    • 70

    Mostly Sunny

    • 52
    • 72

    Mostly Sunny

    • 54
    • 74

    Partly Sunny

    • 53
    • 73

    Partly Sunny

Today 21 Oct San Francisco Bay Shoreline

Mostly cloudy. A chance of Showers. Highs near 70. Southeast Winds up to 5 Mph. Becoming northeast in the afternoon.

Tonight 21 Oct San Francisco Bay Shoreline

Mostly cloudy. A chance of Showers. Patchy fog after midnight. Lows in the mid 50s. West Winds 5 to 10 Mph becoming south after midnight.

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  • Temperature Real-Time

San Francisco Bay - Sulphur Creek Entrance Temperature Statistics

October Temperature

Hayward, Hayward Air Terminal (1.9 miles)

  • Lowest 12 October, 2026

    50.6 °F

  • Average October

    68.1 °F

  • Highest 3 October, 2026

    93.7 °F

Climate (2021–2026)

Hayward, Hayward Air Terminal (1.9 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    59.9 °F

  • Average High 2021–2026

    69.3 °F
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