Tennant Weather Forecast

    • 46
    • 83

    Decreasing Clouds

    • 51
    • 85

    Partly Sunny

    • 48
    • 82

    Partly Sunny

    • 44
    • 75

    Chance Rain Showers

    • 41
    • 73

    Mostly Sunny

    • 38
    • 70

    Mostly Sunny

Today 10 May North Central and Southeast Siskiyou County

Partly cloudy. Highs in the mid 70s to mid 80s. Light Winds becoming southwest 5 to 10 Mph in the late morning and afternoon.

Tonight 10 May North Central and Southeast Siskiyou County

Partly cloudy. Lows in the mid 40s to lower 50s. West Winds 5 to 10 Mph shifting to the east well after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tennant Temperature Statistics

May Temperature

Mount Shasta (28 miles)

  • Lowest 1 May, 2026

    40.6 °F

  • Average May

    60.3 °F

  • Highest 6 May, 2026

    80.7 °F

Climate (2021–Present)

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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