Sumner Lake State Park Weather Forecast

    • 40
    • 70

    Decreasing Clouds

    • 18
    • 54

    Breezy

    • 18
    • 40

    Partly Sunny

    • 24
    • 54

    Partly Sunny

    • 29
    • 58

    Mostly Cloudy

    • 35
    • 58

    Partly Sunny

Today 27 Dec De Baca County

Partly cloudy. Highs in the lower 70s. Southwest Winds 15 to 20 Mph.

Tonight 27 Dec De Baca County

Partly cloudy. Lows around 40. Southwest Winds around 15 Mph in the evening.

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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

    46.7 °F

  • Highest 24 December, 2025

    78.6 °F

Climate (2020–Present)

Melrose Gunnery Range (39.1 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    58.8 °F

  • Average High 2020–2025

    72.6 °F
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