Jackson Triangle Weather Forecast

    • 58
    • 72

    Mostly Sunny

    • 56
    • 71

    Increasing Clouds

    • 57
    • 79

    Mostly Sunny

    • 58
    • 78

    Partly Sunny

    • 58
    • 77

    Partly Sunny

    • 58
    • 79

    Partly Sunny

    • 58
    • 77

    Partly Sunny

Today 12 Sep San Francisco Bay Shoreline

Sunny, breezy. Highs in the 70s. West Winds 20 to 30 Mph.

Tonight 12 Sep San Francisco Bay Shoreline

Mostly clear. Breezy. Lows in the upper 50s. West Winds 20 to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jackson Triangle Temperature Statistics

September Temperature

Hayward, Hayward Air Terminal (1.9 miles)

  • Lowest 7 September, 2026

    55.7 °F

  • Average September

    69.9 °F

  • Highest 9 September, 2026

    97 °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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