Antonito Weather Forecast

    • 35
    • 73

    Mostly Sunny

    • 36
    • 70

    Mostly Sunny

    • 38
    • 72

    Slight Chance Thunderstorms

    • 38
    • 73

    Mostly Sunny

    • 39
    • 72

    Partly Sunny

    • 38
    • 73

    Slight Chance Thunderstorms

    • 40
    • 76

    Mostly Sunny

Today 17 Sep Southern San Luis Valley

Sunny. Highs 68 to 74. West Winds 10 to 15 Mph.

Tonight 17 Sep Southern San Luis Valley

Mostly clear with a 10 percent chance of Thunderstorms. Lows 35 to 41. Northwest Winds 10 to 15 Mph becoming northeast after midnight.

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Antonito Temperature Statistics

September Temperature

San Luis Valley Regional Airport (26.1 miles)

  • Lowest 14 September, 2025

    34 °F

  • Average September

    57.4 °F

  • Highest 2 September, 2025

    81 °F

Climate (2020–Present)

San Luis Valley Regional Airport (26.1 miles)

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  • Average Low 2020–2025

    26.4 °F

  • Average 2020–2025

    44.5 °F

  • Average High 2020–2025

    62.4 °F
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