Great Sand Dunes National Park Weather Forecast

    • 13
    • 37

    Snow Showers Likely

    • 5
    • 39

    Chance Snow Showers

    • 7
    • 44

    Partly Sunny

    • 14
    • 47

    Partly Sunny

    • 19
    • 53

    Mostly Sunny

    • 21
    • 58

    Partly Sunny

Today 29 Jan Alamosa Vicinity/Central San Luis Valley Below 8500 Ft

Mostly cloudy with a 40 percent chance of snow Showers. Highs 34 to 39. East Winds up to 15 Mph.

Tonight 29 Jan Alamosa Vicinity/Central San Luis Valley Below 8500 Ft

Chance of snow Showers until Midnight, then snow Showers likely after midnight. Snow accumulation of 1 to 3 Inches. Lows 11 to 15. South Winds up to 10 Mph. Chance of precipitation 60 percent.

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Great Sand Dunes National Park Temperature Statistics

January Temperature

San Luis Valley Regional Airport (23 miles)

  • Lowest 21 January, 2025

    -13.3 °F

  • Average January

    17.3 °F

  • Highest 4 January, 2025

    50.6 °F

Climate (2020–Present)

San Luis Valley Regional Airport (23 miles)

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  • Average Low 2020–2025

    26.5 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    62.4 °F
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