Downtown Menlo Park Weather Forecast

    • 56
    • 75

    Gradual Clearing

    • 56
    • 76

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 60
    • 86

    Mostly Sunny

    • 59
    • 87

    Partly Sunny

    • 56
    • 80

    Mostly Sunny

Today 20 Sep San Francisco Bay Shoreline

Mostly cloudy. Highs in the upper 60s to mid 70s. West Winds 5 to 15 Mph.

Tonight 20 Sep San Francisco Bay Shoreline

Mostly cloudy. Lows in the upper 50s. West Winds 5 to 15 Mph.

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Downtown Menlo Park Temperature Statistics

September Temperature

Palo Alto Airport (3.7 miles)

  • Lowest 6 September, 2026

    51.8 °F

  • Average September

    69 °F

  • Highest 9 September, 2026

    93.2 °F

Climate (2021–2026)

Palo Alto Airport (3.7 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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