McCarthy Lake Weather Forecast

    • 53
    • 79

    Becoming Sunny

    • 57
    • 88

    Mostly Sunny

    • 51
    • 90

    Partly Sunny

    • 52
    • 78

    Slight Chance Thunderstorms

    • 50
    • 85

    Rain Showers Likely

    • 45
    • 76

    Mostly Sunny

    • 50
    • 74

    Chance Rain Showers

Today 9 Sep Morrill

Mostly sunny. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 9 Sep Morrill

Mostly clear. Lows in the mid 50s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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McCarthy Lake Temperature Statistics

September Temperature

Alliance, Alliance Municipal Airport (8.1 miles)

  • Lowest 2 September, 2026

    51.7 °F

  • Average September

    74.4 °F

  • Highest 5 September, 2026

    96.7 °F

Climate (2021–2026)

Alliance, Alliance Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    64.9 °F
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