Tombstone Mountain Weather Forecast

    • 36
    • 46

    Rain Showers

    • 35
    • 40

    Rain Showers

    • 36
    • 40

    Rain Showers

    • 37
    • 42

    Rain Showers

    • 37
    • 41

    Rain/Snow Likely

    • 35
    • 42

    Rain Showers

Today 16 Dec Shasta Lake Area / Northern Shasta County

At lower Elevations, patchy dense fog through the day. A slight chance of rain Showers early in the morning. A chance of rain Showers late in the Morning, then rain Showers in the afternoon. At higher Elevations, patchy fog in the afternoon. Highs 44 to 56 higher Elevations. 51 to 59 lower Elevations. Light Winds.

Tonight 16 Dec Shasta Lake Area / Northern Shasta County

Rain Showers in the Evening, then rain Showers and a slight chance of Thunderstorms after midnight. Patchy fog through the night. Colder. Lows 34 to 46. Prevailing southwest Winds up to 10 Mph with Gusts to around 30 Mph.

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Tombstone Mountain Temperature Statistics

December Temperature

Mount Shasta (18.6 miles)

  • Lowest 1 December, 2025

    27 °F

  • Average December

    40.6 °F

  • Highest 13 December, 2025

    64 °F

Climate (2020–Present)

Mount Shasta (18.6 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    65.6 °F
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