Downtown San Jose Weather Forecast

    • 38
    • 63

    Mostly Sunny

    • 40
    • 63

    Mostly Cloudy

    • 39
    • 65

    Mostly Sunny

    • 43
    • 65

    Mostly Cloudy

    • 42
    • 62

    Slight Chance Rain

    • 42
    • 65

    Partly Sunny

    • 44
    • 66

    Mostly Cloudy

Today 24 Jan Santa Clara Valley Including San Jose

Sunny. Patchy fog in the morning. Highs in the lower 60s. Northwest Winds 5 to 10 Mph.

Tonight 24 Jan Santa Clara Valley Including San Jose

Mostly clear. Lows in the upper 30s. Northwest Winds around 5 Mph. Becoming east after midnight.

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Downtown San Jose Temperature Statistics

January Temperature

San Jose, San Jose International Airport (2.5 miles)

  • Lowest 10 January, 2026

    34.6 °F

  • Average January

    53.3 °F

  • Highest 16 January, 2026

    71.1 °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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