Sumner Lake State Park Weather Forecast

    • 55
    • 83

    Becoming Sunny

    • 58
    • 84

    Mostly Sunny

    • 57
    • 83

    Slight Chance Thunderstorms

    • 55
    • 82

    Partly Sunny

    • 58
    • 83

    Mostly Sunny

    • 59
    • 83

    Partly Sunny

Today 14 Sep De Baca County

Partly cloudy in the Morning, then becoming mostly sunny. Highs in the lower 80s.

Tonight 14 Sep De Baca County

Mostly clear. Areas of fog after midnight. Lows in the mid 50s.

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  • Temperature Real-Time

Sumner Lake State Park Temperature Statistics

September Temperature

Melrose Gunnery Range (39.1 miles)

  • Lowest 6 September, 2025

    55.9 °F

  • Average September

    72.5 °F

  • Highest 9 September, 2025

    94.8 °F

Climate (2020–Present)

Melrose Gunnery Range (39.1 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    58.6 °F

  • Average High 2020–2025

    72.2 °F
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