Copper Basin Reservoir Weather Forecast

    • 74
    • 99

    Hot

    • 76
    • 101

    Hot

    • 77
    • 100

    Hot

    • 75
    • 93

    Chance Thunderstorms

    • 75
    • 94

    Slight Chance Thunderstorms

    • 77
    • 97

    Slight Chance Thunderstorms

    • 76
    • 98

    Hot

Today 15 Sep San Bernardino County-Upper Colorado River Valley

Sunny. Highs around 100. South Winds 5 to 10 Mph.

Tonight 15 Sep San Bernardino County-Upper Colorado River Valley

Clear. Lows 73 to 76. Southwest Winds up to 10 Mph shifting to the northeast after midnight.

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Copper Basin Reservoir Temperature Statistics

September Temperature

Havasu City Airport (20.5 miles)

  • Lowest 5 September, 2025

    73.4 °F

  • Average September

    92 °F

  • Highest 1 September, 2025

    109.4 °F

Climate (2020–Present)

Havasu City Airport (20.5 miles)

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  • Average Low 2020–2025

    65.4 °F

  • Average 2020–2025

    76.7 °F

  • Average High 2020–2025

    87.4 °F
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