Downtown San Jose Weather Forecast

    • 44
    • 70

    Mostly Cloudy

    • 43
    • 69

    Partly Sunny

    • 41
    • 69

    Mostly Sunny

    • 44
    • 69

    Mostly Sunny

    • 46
    • 68

    Partly Sunny

    • 43
    • 66

    Areas Fog

    • 44
    • 63

    Partly Sunny

Today 17 Jan Santa Clara Valley Including San Jose

Partly cloudy. Highs around 70. Northwest Winds around 5 Mph.

Tonight 17 Jan Santa Clara Valley Including San Jose

Mostly cloudy. Lows in the mid 40s. Light Winds.

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Downtown San Jose Temperature Statistics

January Temperature

San Jose, San Jose International Airport (2.5 miles)

  • Lowest 10 January, 2026

    35.1 °F

  • Average January

    52.3 °F

  • Highest 15 January, 2026

    66.9 °F

Climate (2021–Present)

San Jose, San Jose International Airport (2.5 miles)

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  • Average Low 2021–2026

    52 °F

  • Average 2021–2026

    61.6 °F

  • Average High 2021–2026

    72.4 °F
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