Sumner Lake State Park Weather Forecast

    • 55
    • 88

    Increasing Clouds

    • 46
    • 74

    Partly Sunny

    • 53
    • 82

    Mostly Sunny

    • 59
    • 93

    Mostly Sunny

    • 61
    • 91

    Partly Sunny

    • 58
    • 92

    Mostly Sunny

Today 9 May De Baca County

Sunny in the Morning, then becoming partly cloudy. Highs in the lower 90s. West Winds 15 to 20 Mph in the afternoon.

Tonight 9 May De Baca County

Clear. Lows in the upper 40s. East Winds around 15 Mph.

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Sumner Lake State Park Temperature Statistics

May Temperature

Melrose Gunnery Range (39.1 miles)

  • Lowest 7 May, 2026

    37.4 °F

  • Average May

    60.5 °F

  • Highest 4 May, 2026

    83.5 °F

Climate (2022–Present)

Melrose Gunnery Range (39.1 miles)

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  • Average Low 2022–2026

    46 °F

  • Average 2022–2026

    59.4 °F

  • Average High 2022–2026

    73.4 °F
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