Sumner Lake State Park Weather Forecast

    • 37
    • 76

    Sunny

    • 34
    • 66

    Sunny

    • 28
    • 72

    Mostly Sunny

    • 29
    • 50

    Partly Sunny

    • 34
    • 67

    Mostly Sunny

    • 39
    • 68

    Mostly Sunny

    • 40
    • 71

    Mostly Sunny

Today 11 Dec De Baca County

Much warmer. Sunny. Highs in the upper 70s. West Winds around 15 Mph.

Tonight 11 Dec De Baca County

Clear. Lows in the upper 30s. Northwest Winds 15 to 20 Mph.

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Sumner Lake State Park Temperature Statistics

December Temperature

Melrose Gunnery Range (39.1 miles)

  • Lowest 1 December, 2025

    16.5 °F

  • Average December

    39.8 °F

  • Highest 9 December, 2025

    67.8 °F

Climate (2020–Present)

Melrose Gunnery Range (39.1 miles)

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  • Average Low 2020–2025

    45.6 °F

  • Average 2020–2025

    58.7 °F

  • Average High 2020–2025

    72.4 °F
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