Blanca Weather Forecast

    • 22
    • 47

    Mostly Sunny

    • 28
    • 54

    Mostly Sunny

    • 29
    • 56

    Mostly Sunny

    • 31
    • 54

    Mostly Sunny

    • 28
    • 57

    Mostly Sunny

    • 26
    • 54

    Partly Sunny

Today 18 Dec Southern San Luis Valley

Sunny. Highs 43 to 50. Southwest Winds 10 to 15 Mph.

Tonight 18 Dec Southern San Luis Valley

Partly cloudy. Lows 14 to 29. Southwest Winds around 10 Mph.

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Blanca Temperature Statistics

December Temperature

San Luis Valley Regional Airport (18.6 miles)

  • Lowest 5 December, 2025

    0 °F

  • Average December

    24.5 °F

  • Highest 12 December, 2025

    54 °F

Climate (2020–Present)

San Luis Valley Regional Airport (18.6 miles)

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  • Average Low 2020–2025

    26.6 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    62.4 °F
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