Portola Weather Forecast

    • 49
    • 60

    Mostly Cloudy

    • 49
    • 61

    Mostly Cloudy

    • 47
    • 60

    Partly Sunny

    • 45
    • 62

    Partly Sunny

    • 45
    • 60

    Mostly Cloudy

    • 45
    • 62

    Mostly Cloudy

Today 21 Jan San Francisco

Cloudy. Highs around 60. North Winds around 5 Mph. Becoming northwest in the afternoon.

Tonight 21 Jan San Francisco

Mostly cloudy. Lows around 50. Southwest Winds around 5 Mph.

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Portola Temperature Statistics

January Temperature

San Francisco, San Francisco International Airport (7.5 miles)

  • Lowest 10 January, 2026

    41 °F

  • Average January

    52.9 °F

  • Highest 16 January, 2026

    69.1 °F

Climate (2021–Present)

San Francisco, San Francisco International Airport (7.5 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    66.5 °F
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