Tennant Weather Forecast

    • 25
    • 54

    Mostly Sunny

    • 25
    • 56

    Decreasing Clouds

    • 26
    • 50

    Partly Sunny

    • 24
    • 46

    Rain Likely

    • 24
    • 48

    Mostly Sunny

    • 29
    • 55

    Mostly Cloudy

    • 30
    • 57

    Partly Sunny

Today 28 Oct North Central and Southeast Siskiyou County

Partly cloudy. Lows in the lower to mid 30s. Highs in the lower 50s to lower 60s.

Tonight 28 Oct North Central and Southeast Siskiyou County

Mostly clear until well after midnight then becoming partly cloudy. Patchy dense fog well after midnight. Lows in the mid 20s to lower 30s. Light Winds becoming northwest around 5 Mph late this Evening, then shifting to the southeast after midnight.

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  • Temperature Forecast NOAA

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Tennant Temperature Statistics

October Temperature

Mount Shasta (28 miles)

  • Lowest 24 October, 2026

    27.6 °F

  • Average October

    57 °F

  • Highest 8 October, 2026

    91.7 °F

Climate (2021–2026)

Mount Shasta (28 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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