Castella Weather Forecast

    • 40
    • 61

    Mostly Cloudy

    • 40
    • 63

    Mostly Cloudy

    • 37
    • 60

    Mostly Sunny

    • 41
    • 63

    Mostly Sunny

    • 42
    • 67

    Mostly Sunny

    • 42
    • 69

    Mostly Sunny

    • 42
    • 69

    Mostly Sunny

Today 30 Jan Shasta Lake Area / Northern Shasta County

Mostly cloudy in the morning then clearing. Highs 49 to 63 higher Elevations. 60 to 66 lower Elevations. Light Winds.

Tonight 30 Jan Shasta Lake Area / Northern Shasta County

Mostly cloudy. Lows 34 to 49. Light Winds.

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Castella Temperature Statistics

January Temperature

Trinity Center (21.7 miles)

  • Lowest 9 January, 2026

    26.6 °F

  • Average January

    41.5 °F

  • Highest 16 January, 2026

    59 °F

Climate (2021–Present)

Trinity Center (21.7 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    67.3 °F
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