San Jose Weather Forecast

    • 40
    • 60

    Dense Fog

    • 36
    • 63

    Mostly Sunny

    • 42
    • 63

    Mostly Cloudy

    • 40
    • 65

    Partly Sunny

    • 44
    • 65

    Mostly Cloudy

    • 43
    • 64

    Slight Chance Rain

Today 23 Jan Santa Clara Valley Including San Jose

Mostly cloudy late in the morning then becoming sunny. Areas of fog late in the morning. Highs in the lower 60s. Light Winds. Becoming northwest 5 to 10 Mph in the afternoon.

Tonight 23 Jan Santa Clara Valley Including San Jose

Partly cloudy in the evening then becoming mostly cloudy. Areas of fog. Lows in the lower 40s. Northwest Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Jose Temperature Statistics

January Temperature

San Jose, San Jose International Airport (1.9 miles)

  • Lowest 10 January, 2026

    35.1 °F

  • Average January

    52.4 °F

  • Highest 16 January, 2026

    71.1 °F

Climate (2021–Present)

San Jose, San Jose International Airport (1.9 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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