Palo Alto Weather Forecast

    • 55
    • 82

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 56
    • 76

    Partly Sunny

    • 57
    • 78

    Mostly Sunny

    • 57
    • 80

    Mostly Sunny

    • 57
    • 79

    Partly Sunny

Today 14 Sep San Francisco Bay Shoreline

Sunny. Highs in the mid 70s to lower 80s. South Winds up to 5 Mph increasing to west 10 to 20 Mph in the afternoon.

Tonight 14 Sep San Francisco Bay Shoreline

Mostly clear. Lows in the upper 50s. Southwest Winds 10 to 20 Mph.

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Palo Alto Temperature Statistics

September Temperature

Palo Alto Airport (1.9 miles)

  • Lowest 6 September, 2026

    51.8 °F

  • Average September

    70.5 °F

  • Highest 9 September, 2026

    93.2 °F

Climate (2021–2026)

Palo Alto Airport (1.9 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    60.7 °F

  • Average High 2021–2026

    67.4 °F
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