Tennant Weather Forecast

    • 55
    • 84

    Mostly Cloudy

    • 56
    • 88

    Partly Sunny

    • 54
    • 89

    Mostly Sunny

    • 50
    • 85

    Sunny

    • 49
    • 86

    Sunny

    • 49
    • 86

    Sunny

Today 20 Jul North Central and Southeast Siskiyou County

Mostly cloudy. A 20 percent chance of Showers early this morning. Highs in the mid 70s to mid 80s. East Winds 5 to 10 Mph shifting to the southwest this afternoon.

Tonight 20 Jul North Central and Southeast Siskiyou County

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 50s to mid 60s. West Winds 5 to 10 Mph shifting to the southeast after midnight.

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Tennant Temperature Statistics

July Temperature

Mount Shasta (28 miles)

  • Lowest 1 July, 2026

    43.6 °F

  • Average July

    69.6 °F

  • Highest 15 July, 2026

    93.7 °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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