Rainbow Lake Weather Forecast

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    Rain Showers

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    Rain Showers

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    • 52

    Rain Showers

    • 50
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    Rain Showers

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    Rain Showers

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    Rain Showers

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    Rain Showers Likely

Today 16 Dec Mountains Southwestern Shasta County to Western Colusa County

A chance of rain Showers early in the Morning, then rain Showers in the late morning and afternoon. At lower Elevations, patchy fog through the day. At higher Elevations, patchy fog in the afternoon. Highs 48 to 60. Prevailing southwest Winds up to 10 Mph.

Tonight 16 Dec Mountains Southwestern Shasta County to Western Colusa County

Colder. Patchy fog through the night. A slight chance of Thunderstorms early in the evening. Rain Showers through the night. A slight chance of Thunderstorms after midnight. Lows 36 to 50. Prevailing southwest Winds up to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Lake Temperature Statistics

December Temperature

Weaverville (19.9 miles)

  • Lowest 3 December, 2025

    28.4 °F

  • Average December

    39.1 °F

  • Highest 1 December, 2025

    55.4 °F

Climate (2023–Present)

Weaverville (19.9 miles)

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  • Average Low 2023–2025

    42.9 °F

  • Average 2023–2025

    56.7 °F

  • Average High 2023–2025

    70.4 °F
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