Tennant Weather Forecast

    • 43
    • 82

    Sunny

    • 48
    • 85

    Mostly Sunny

    • 49
    • 84

    Mostly Sunny

    • 47
    • 82

    Partly Sunny

    • 45
    • 84

    Mostly Sunny

    • 45
    • 84

    Mostly Sunny

    • 44
    • 84

    Mostly Sunny

Today 22 Aug North Central and Southeast Siskiyou County

Sunny. Highs in the mid 70s to lower 80s. Southwest Winds 10 to 15 Mph.

Tonight 22 Aug North Central and Southeast Siskiyou County

Clear. Lows in the lower 40s to lower 50s. Northwest Winds 5 to 10 Mph shifting to the northeast well after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tennant Temperature Statistics

August Temperature

Mount Shasta (28 miles)

  • Lowest 16 August, 2026

    43.6 °F

  • Average August

    71.8 °F

  • Highest 7 August, 2026

    98.7 °F

Climate (2021–2026)

Mount Shasta (28 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    65.8 °F
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