Tennant Weather Forecast

    • 32
    • 60

    Decreasing Clouds

    • 35
    • 64

    Slight Chance Rain Showers

    • 34
    • 66

    Rain Showers Likely

    • 26
    • 56

    Chance Rain Showers

    • 24
    • 53

    Mostly Sunny

    • 27
    • 57

    Chance Rain

    • 27
    • 56

    Slight Chance Rain

Today 19 Oct North Central and Southeast Siskiyou County

Partly cloudy. Slight chance of rain in the afternoon. Highs in the lower 50s to lower 60s.

Tonight 19 Oct North Central and Southeast Siskiyou County

Mostly cloudy. Lows in the lower 30s to lower 40s. South Winds around 5 Mph shifting to the southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tennant Temperature Statistics

October Temperature

Mount Shasta (28 miles)

  • Lowest 13 October, 2026

    28.7 °F

  • Average October

    60.4 °F

  • Highest 8 October, 2026

    91.7 °F

Climate (2021–2026)

Mount Shasta (28 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    65.9 °F
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