Great Sand Dunes National Park Weather Forecast

    • 41
    • 73

    Partly Sunny

    • 39
    • 69

    Slight Chance Thunderstorms

    • 37
    • 68

    Mostly Sunny

    • 37
    • 73

    Sunny

    • 40
    • 75

    Mostly Sunny

    • 42
    • 75

    Mostly Sunny

    • 41
    • 72

    Partly Sunny

Today 24 Sep Alamosa Vicinity/Central San Luis Valley Below 8500 Ft

Partly cloudy. Lows 35 to 42. West Winds up to 10 Mph.

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  • Temperature Forecast NOAA

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Great Sand Dunes National Park Temperature Statistics

September Temperature

San Luis Valley Regional Airport (23 miles)

  • Lowest 14 September, 2018

    36 °F
  • Average September

    60.9 °F
  • Highest 16 September, 2018

    82.9 °F

Climate (2010–Present)

San Luis Valley Regional Airport (23 miles)

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  • Average Low 2010–Present

    28.3 °F
  • Average 2010–Present

    45.9 °F
  • Average High 2010–Present

    61.8 °F
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