Tennant Weather Forecast

    • 48
    • 79

    Chance Thunderstorms

    • 46
    • 78

    Chance Rain Showers

    • 48
    • 82

    Sunny

    • 52
    • 88

    Sunny

    • 51
    • 89

    Sunny

    • 50
    • 87

    Sunny

    • 49
    • 86

    Sunny

Today 19 Jun North Central and Southeast Siskiyou County

Mostly cloudy. Chance of Showers and slight chance of Thunderstorms early this Morning, then chance of Thunderstorms in the late morning and afternoon. Highs in the mid 70s to lower 80s. Southwest Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Tonight 19 Jun North Central and Southeast Siskiyou County

Mostly cloudy until well after midnight then becoming partly cloudy. Chance of Showers early this evening. Slight chance of Thunderstorms this evening. Slight chance of rain after midnight. Lows in the mid 40s to mid 50s. Southwest Winds around 5 Mph. Chance of precipitation 30 percent.

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Tennant Temperature Statistics

June Temperature

Mount Shasta (28 miles)

  • Lowest 7 June, 2026

    39.7 °F

  • Average June

    65.1 °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

    52.7 °F

  • Average High 2021–2026

    66 °F
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