Tunnel Reservoir Weather Forecast

    • 33
    • 65

    Mostly Cloudy

    • 33
    • 61

    Partly Sunny

    • 31
    • 57

    Rain Likely

    • 31
    • 61

    Mostly Sunny

    • 35
    • 65

    Mostly Cloudy

    • 36
    • 68

    Partly Sunny

Today 29 Oct Shasta Lake Area and Interstate 5 Between 1000-3000 ft

Mostly cloudy. Highs 57 to 67. Light Winds.

Tonight 29 Oct Shasta Lake Area and Interstate 5 Between 1000-3000 ft

Mostly cloudy in the evening then becoming mostly clear. Lows 35 to 45. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tunnel Reservoir Temperature Statistics

October Temperature

Mount Shasta (31.1 miles)

  • Lowest 24 October, 2026

    27.6 °F

  • Average October

    56.3 °F

  • Highest 8 October, 2026

    91.7 °F

Climate (2021–2026)

Mount Shasta (31.1 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    66 °F
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