Tennant Weather Forecast

    • 50
    • 85

    Becoming Sunny

    • 54
    • 85

    Sunny

    • 54
    • 88

    Slight Chance Thunderstorms

    • 54
    • 85

    Slight Chance Thunderstorms

    • 54
    • 86

    Partly Sunny

    • 51
    • 84

    Partly Sunny

Today 31 Aug North Central and Southeast Siskiyou County

Partly cloudy early this morning then becoming sunny. Areas of smoke this morning. Highs in the mid 70s to mid 80s. Southeast Winds 5 to 10 Mph shifting to the southwest 10 to 15 Mph this afternoon.

Tonight 31 Aug North Central and Southeast Siskiyou County

Mostly clear. Areas of smoke. Lows in the lower to mid 50s. Southwest Winds 5 to 10 Mph shifting to the east well after midnight.

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Tennant Temperature Statistics

August Temperature

Mount Shasta (28 miles)

  • Lowest 19 August, 2025

    42.7 °F

  • Average August

    70 °F

  • Highest 11 August, 2025

    99.6 °F

Climate (2020–Present)

Mount Shasta (28 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    65.7 °F
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