Costilla Weather Forecast

    • 35
    • 75

    Mostly Sunny

    • 29
    • 63

    Partly Sunny

    • 37
    • 68

    Breezy

    • 38
    • 71

    Mostly Cloudy

    • 36
    • 67

    Slight Chance Thunderstorms

    • 33
    • 64

    Chance Rain Showers

    • 26
    • 54

    Chance Rain Showers

Today 26 Mar Upper Rio Grande Valley

Breezy, sunny. Highs in the upper 70s. Southwest Winds 15 to 25 Mph.

Tonight 26 Mar Upper Rio Grande Valley

Breezy. Mostly clear. Lows in the mid 30s. West Winds 20 to 25 Mph, becoming north around 15 Mph after midnight.

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Costilla Temperature Statistics

March Temperature

San Luis Valley Regional Airport (36.7 miles)

  • Lowest 16 March, 2026

    9.6 °F

  • Average March

    43.1 °F

  • Highest 21 March, 2026

    83.6 °F

Climate (2021–Present)

San Luis Valley Regional Airport (36.7 miles)

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  • Average Low 2021–2026

    26.8 °F

  • Average 2021–2026

    45 °F

  • Average High 2021–2026

    63.1 °F
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