San Francisco Bay - Treasure Island Weather Forecast

    • 64
    • 81

    Increasing Clouds

    • 59
    • 71

    Mostly Cloudy

    • 57
    • 69

    Partly Sunny

    • 57
    • 70

    Partly Sunny

    • 57
    • 62

    Partly Sunny

    • 57
    • 62

    Partly Sunny

    • 56
    • 62

    Mostly Sunny

Today 21 Jul San Francisco

Sunny. Highs in the upper 60s to lower 80s. West Winds 10 to 15 Mph.

Tonight 21 Jul San Francisco

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 60s. Southwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Treasure Island Temperature Statistics

July Temperature

Oakland, Metro Oakland International Airport (10.6 miles)

  • Lowest 11 July, 2026

    54.6 °F

  • Average July

    64.1 °F

  • Highest 14 July, 2026

    86.6 °F

Climate (2021–2026)

Oakland, Metro Oakland International Airport (10.6 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    58.9 °F

  • Average High 2021–2026

    67.2 °F
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