Hayward Weather Forecast

    • 56
    • 74

    Mostly Sunny

    • 59
    • 83

    Mostly Sunny

    • 58
    • 86

    Mostly Sunny

    • 60
    • 85

    Partly Sunny

    • 61
    • 84

    Partly Sunny

    • 61
    • 84

    Partly Sunny

    • 61
    • 84

    Mostly Sunny

Today 28 Sep San Francisco Bay Shoreline

Sunny. Highs in the 70s. Northwest Winds around 5 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 28 Sep San Francisco Bay Shoreline

Mostly clear. Lows in the mid 50s. West Winds 10 to 20 Mph. Becoming south up to 5 Mph after midnight.

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Hayward Temperature Statistics

September Temperature

Hayward, Hayward Air Terminal (1.9 miles)

  • Lowest 26 September, 2026

    53.1 °F

  • Average September

    67.4 °F

  • Highest 9 September, 2026

    99.6 °F

Climate (2021–2026)

Hayward, Hayward Air Terminal (1.9 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    59.8 °F

  • Average High 2021–2026

    69.2 °F
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