Alamosa Weather Forecast

    • 8
    • 32

    Snow

    • 5
    • 30

    Partly Sunny

    • 2
    • 30

    Partly Sunny

    • 4
    • 33

    Partly Sunny

    • 3
    • 36

    Mostly Sunny

    • 4
    • 36

    Mostly Sunny

Today 3 Dec Alamosa Vicinity/Central San Luis Valley Below 8500 Ft

Periods of snow Showers. Snow accumulation of 2 to 5 Inches. Near steady temperature near 30. Southeast Winds up to 10 Mph becoming east in the afternoon. Chance of precipitation 90 percent.

Tonight 3 Dec Alamosa Vicinity/Central San Luis Valley Below 8500 Ft

Cloudy. Snow Showers likely until midnight. Snow accumulation of 1 to 3 Inches. Lows 6 to 12. North Winds up to 10 Mph. Chance of precipitation 70 percent.

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Alamosa Temperature Statistics

December Temperature

San Luis Valley Regional Airport (1.9 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    28.1 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

San Luis Valley Regional Airport (1.9 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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