Tennant Weather Forecast

    • 30
    • 46

    Slight Chance Rain

    • 29
    • 50

    Patchy Fog

    • 31
    • 48

    Mostly Cloudy

    • 28
    • 43

    Chance Rain

    • 28
    • 49

    Mostly Sunny

    • 31
    • 53

    Partly Sunny

    • 30
    • 55

    Partly Sunny

Today 17 Nov North Central and Southeast Siskiyou County

Mostly cloudy with a 30 percent chance of rain and snow. Snow level 6000 feet. Highs in the lower to mid 40s. South Winds 5 to 10 Mph shifting to the northwest late this afternoon.

Tonight 17 Nov North Central and Southeast Siskiyou County

Partly cloudy. Slight chance of rain this evening. Patchy fog this evening. Areas of fog after Midnight, then patchy fog well after midnight. Lows in the lower to mid 30s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

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Tennant Temperature Statistics

November Temperature

Mount Shasta (28 miles)

  • Lowest 1 November, 2025

    34 °F

  • Average November

    47.9 °F

  • Highest 10 November, 2025

    69.1 °F

Climate (2020–Present)

Mount Shasta (28 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.3 °F

  • Average High 2020–2025

    65.5 °F
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