Lost Valley Weather Forecast

    • 57
    • 86

    Sunny

    • 64
    • 89

    Mostly Sunny

    • 67
    • 94

    Partly Sunny

    • 61
    • 87

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 57
    • 75

    Mostly Sunny

Today 7 Sep East Bay Interior Valleys

Sunny. Highs near 90. Northwest Winds 5 to 10 Mph.

Tonight 7 Sep East Bay Interior Valleys

Mostly clear. Lows in the mid 50s. Light Winds.

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Lost Valley Temperature Statistics

September Temperature

Oakland, Metro Oakland International Airport (9.9 miles)

  • Lowest 4 September, 2026

    55.7 °F

  • Average September

    65.8 °F

  • Highest 2 September, 2026

    73.7 °F

Climate (2021–2026)

Oakland, Metro Oakland International Airport (9.9 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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