Castle Rock State Park Entrance Weather Forecast

    • 44
    • 51

    Mostly Cloudy

    • 39
    • 48

    Gradual Clearing

    • 37
    • 46

    Mostly Sunny

    • 40
    • 50

    Mostly Sunny

    • 42
    • 53

    Mostly Cloudy

    • 43
    • 54

    Partly Sunny

    • 44
    • 56

    Mostly Sunny

Today 6 Jan Santa Cruz Mountains

Partly cloudy. Highs in the 50s. Light Winds.

Tonight 6 Jan Santa Cruz Mountains

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the mid 40s. Northwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Rock State Park Entrance Temperature Statistics

January Temperature

San Jose, San Jose International Airport (12.4 miles)

  • Lowest 1 January, 2026

    51.1 °F

  • Average January

    56.6 °F

  • Highest 2 January, 2026

    63 °F

Climate (2021–Present)

San Jose, San Jose International Airport (12.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    52 °F

  • Average 2021–2026

    61.6 °F

  • Average High 2021–2026

    72.4 °F
Get WillyWeather+ to remove ads