Sierra Vista Weather Forecast

    • 47
    • 73

    Sunny

    • 45
    • 73

    Sunny

    • 45
    • 74

    Sunny

    • 48
    • 76

    Sunny

    • 48
    • 79

    Sunny

    • 47
    • 76

    Sunny

    • 46
    • 75

    Mostly Sunny

Today 15 Dec Upper San Pedro River Valley including Sierra Vista/Benson

Sunny. Highs 71 to 76.

Tonight 15 Dec Upper San Pedro River Valley including Sierra Vista/Benson

Clear. Lows 39 to 47.

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Sierra Vista Temperature Statistics

December Temperature

Fort Huachuca, Libby AAF Ft Huachuca (3.7 miles)

  • Lowest 6 December, 2025

    35.4 °F

  • Average December

    55.7 °F

  • Highest 13 December, 2025

    77.2 °F

Climate (2020–Present)

Fort Huachuca, Libby AAF Ft Huachuca (3.7 miles)

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  • Average Low 2020–2025

    53.2 °F

  • Average 2020–2025

    65.3 °F

  • Average High 2020–2025

    77 °F
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