Mount Pleasant Weather Forecast

    • 55
    • 81

    Increasing Clouds

    • 54
    • 77

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 57
    • 85

    Mostly Sunny

    • 57
    • 85

    Mostly Sunny

    • 57
    • 87

    Mostly Sunny

    • 57
    • 86

    Mostly Sunny

Today 12 Sep Santa Clara Valley Including San Jose

Sunny. Highs in the upper 70s to mid 80s. Northwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 12 Sep Santa Clara Valley Including San Jose

Clear in the evening then becoming partly cloudy. Lows in the mid 50s. Northwest Winds 10 to 20 Mph with Gusts to around 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Pleasant Temperature Statistics

September Temperature

San Jose / Reid / Hillv (1.2 miles)

  • Lowest 7 September, 2026

    53.6 °F

  • Average September

    74.8 °F

  • Highest 9 September, 2026

    98.6 °F

Climate (2021–2026)

San Jose / Reid / Hillv (1.2 miles)

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  • Average Low 2021–2026

    52 °F

  • Average 2021–2026

    63.7 °F

  • Average High 2021–2026

    72.3 °F
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