Castella Weather Forecast

    • 57
    • 91

    Sunny

    • 58
    • 92

    Sunny

    • 60
    • 95

    Sunny

    • 61
    • 93

    Partly Sunny

    • 58
    • 84

    Mostly Sunny

    • 55
    • 86

    Slight Chance Rain Showers

    • 56
    • 87

    Mostly Sunny

Today 15 Sep Shasta Lake Area / Northern Shasta County

Sunny, warmer. Highs 77 to 92 higher Elevations. 88 to 96 lower Elevations. Prevailing northeast Winds up to 10 Mph.

Tonight 15 Sep Shasta Lake Area / Northern Shasta County

Clear. Lows 49 to 64 higher Elevations. 57 to 69 lower Elevations. Light Winds becoming northeast up to 10 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Castella Temperature Statistics

September Temperature

Trinity Center (21.7 miles)

  • Lowest 1 September, 2025

    51.8 °F

  • Average September

    69.4 °F

  • Highest 1 September, 2025

    95 °F

Climate (2020–Present)

Trinity Center (21.7 miles)

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

  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.5 °F
Get WillyWeather+ to remove ads