Tennant Weather Forecast

    • 22
    • 56

    Gradual Clearing

    • 21
    • 51

    Mostly Sunny

    • 26
    • 51

    Mostly Sunny

    • 30
    • 60

    Mostly Sunny

    • 32
    • 66

    Mostly Sunny

    • 37
    • 72

    Mostly Sunny

    • 38
    • 75

    Mostly Sunny

Today 10 Oct North Central and Southeast Siskiyou County

Mostly clear. Lows in the mid 30s to mid 40s. Highs in the mid 60s to mid 70s.

Tonight 10 Oct North Central and Southeast Siskiyou County

Partly cloudy this evening then clearing. Lows in the mid 20s to lower 30s. North Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tennant Temperature Statistics

October Temperature

Mount Shasta (28 miles)

  • Lowest 1 October, 2026

    46.7 °F

  • Average October

    67.8 °F

  • Highest 8 October, 2026

    91 °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

    65.8 °F
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