Tennant Weather Forecast

    • 41
    • 69

    Chance Rain

    • 35
    • 61

    Chance Rain

    • 36
    • 64

    Mostly Sunny

    • 39
    • 72

    Sunny

    • 40
    • 74

    Sunny

    • 42
    • 75

    Mostly Sunny

Today 26 Jun North Central and Southeast Siskiyou County

Mostly cloudy with a slight chance of Showers in the Morning, then partly cloudy with a slight chance of Thunderstorms in the afternoon. Highs in the lower 60s to lower 70s. West Winds 10 to 15 Mph. Chance of precipitation 10 percent.

Tonight 26 Jun North Central and Southeast Siskiyou County

Cloudy. A 30 percent chance of rain well after midnight. Lows in the mid 40s to lower 50s. West Winds 5 to 10 Mph.

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Tennant Temperature Statistics

June Temperature

Mount Shasta (28 miles)

  • Lowest 7 June, 2026

    39.7 °F

  • Average June

    66 °F

  • Highest 15 June, 2026

    93.7 °F

Climate (2021–2026)

Mount Shasta (28 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    65.9 °F
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