Milpitas Weather Forecast

    • 55
    • 76

    Increasing Clouds

    • 57
    • 78

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

Today 21 Sep Santa Clara Valley Including San Jose

Sunny. Highs in the upper 70s. Southeast Winds up to 5 Mph increasing to west 10 to 15 Mph in the afternoon.

Tonight 21 Sep Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming mostly cloudy. Lows in the mid 50s. Northwest Winds 5 to 10 Mph becoming southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Milpitas Temperature Statistics

September Temperature

San Jose, San Jose International Airport (4.3 miles)

  • Lowest 5 September, 2026

    54.6 °F

  • Average September

    70.4 °F

  • Highest 9 September, 2026

    97.6 °F

Climate (2021–2026)

San Jose, San Jose International Airport (4.3 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    62.1 °F

  • Average High 2021–2026

    72.8 °F
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