Cupertino Weather Forecast

    • 51
    • 73

    Mostly Sunny

    • 51
    • 79

    Sunny

    • 54
    • 83

    Mostly Sunny

    • 57
    • 87

    Sunny

    • 60
    • 93

    Mostly Sunny

    • 60
    • 90

    Partly Sunny

Today 22 Sep Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs in the lower 70s. Southeast Winds around 5 Mph. Becoming northwest in the afternoon.

Tonight 22 Sep Santa Clara Valley Including San Jose

Partly cloudy. Lows in the lower 50s. West Winds around 5 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Cupertino Temperature Statistics

September Temperature

Mountain View, Moffett Field (5.6 miles)

  • Lowest 15 September, 2017

    57 °F
  • Average September

    71.9 °F
  • Highest 1 September, 2017

    105.1 °F

Climate (2010–Present)

Mountain View, Moffett Field (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2010–Present

    52.8 °F
  • Average 2010–Present

    60.5 °F
  • Average High 2010–Present

    70.2 °F
Get an account to remove ads