Copper Basin Reservoir Weather Forecast

    • 72
    • 98

    Hot

    • 75
    • 98

    Hot

    • 73
    • 96

    Mostly Sunny

    • 73
    • 95

    Sunny

    • 76
    • 99

    Hot

    • 78
    • 100

    Slight Chance Thunderstorms

    • 78
    • 99

    Slight Chance Thunderstorms

Today 19 Sep San Bernardino County-Upper Colorado River Valley

Sunny. Highs around 100. Northeast Winds up to 5 Mph shifting to the south in the afternoon.

Tonight 19 Sep San Bernardino County-Upper Colorado River Valley

Mostly clear. Lows 72 to 75. South Winds up to 5 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 7 September, 2026

    78.8 °F

  • Average September

    94.4 °F

  • Highest 10 September, 2026

    113 °F

Climate (2021–2026)

Havasu City Airport (20.5 miles)

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  • Average Low 2021–2026

    66.1 °F

  • Average 2021–2026

    77.2 °F

  • Average High 2021–2026

    87.8 °F
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