Southgate Weather Forecast

    • 56
    • 72

    Increasing Clouds

    • 58
    • 67

    Mostly Cloudy

    • 56
    • 68

    Partly Sunny

    • 58
    • 72

    Partly Sunny

    • 59
    • 72

    Partly Sunny

    • 57
    • 72

    Partly Sunny

    • 57
    • 72

    Mostly Sunny

Today 30 Aug San Francisco Bay Shoreline

Partly cloudy late in the morning then becoming sunny. Highs in the upper 60s to mid 70s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 30 Aug San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. West Winds 10 to 20 Mph. Becoming southwest 5 to 10 Mph after midnight.

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Southgate Temperature Statistics

August Temperature

Hayward, Hayward Air Terminal (1.2 miles)

  • Lowest 4 August, 2026

    57.7 °F

  • Average August

    67.4 °F

  • Highest 3 August, 2026

    85.6 °F

Climate (2021–2026)

Hayward, Hayward Air Terminal (1.2 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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