Rainbow Lake Weather Forecast

    • 50
    • 60

    Increasing Clouds

    • 48
    • 61

    Mostly Cloudy

    • 45
    • 60

    Partly Sunny

    • 49
    • 64

    Mostly Sunny

    • 51
    • 67

    Mostly Sunny

    • 51
    • 69

    Mostly Sunny

    • 51
    • 67

    Partly Sunny

Today 30 Jan Mountains Southwestern Shasta County to Western Colusa County

Mostly cloudy in the morning then becoming mostly sunny. Highs 50 to 65. Light Winds.

Tonight 30 Jan Mountains Southwestern Shasta County to Western Colusa County

Partly cloudy. Lows 40 to 50. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Lake Temperature Statistics

January Temperature

Weaverville (19.9 miles)

  • Lowest 25 January, 2026

    23 °F

  • Average January

    41.7 °F

  • Highest 16 January, 2026

    64.4 °F

Climate (2023–Present)

Weaverville (19.9 miles)

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  • Average Low 2023–2026

    42.5 °F

  • Average 2023–2026

    55.8 °F

  • Average High 2023–2026

    69.3 °F
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