Portola Valley Weather Forecast

    • 52
    • 79

    Mostly Sunny

    • 53
    • 82

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 53
    • 81

    Mostly Sunny

    • 55
    • 75

    Partly Sunny

    • 51
    • 71

    Mostly Sunny

    • 52
    • 80

    Sunny

Today 22 Jun San Francisco Bay Shoreline

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

Tonight 22 Jun San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s. West Winds 10 to 20 Mph. Becoming 5 to 10 Mph after midnight.

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Portola Valley Temperature Statistics

June Temperature

Palo Alto Airport (8.1 miles)

  • Lowest 1 June, 2026

    53.6 °F

  • Average June

    68.3 °F

  • Highest 11 June, 2026

    95 °F

Climate (2021–2026)

Palo Alto Airport (8.1 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    60.6 °F

  • Average High 2021–2026

    67.4 °F
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