Costilla Weather Forecast

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    • 81

    Thunderstorms

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    Thunderstorms

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    • 83

    Thunderstorms Likely

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    Chance Thunderstorms

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    Chance Thunderstorms

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    Chance Thunderstorms

Today 17 Jul Upper Rio Grande Valley

Mostly sunny this Morning, then mostly cloudy with numerous Showers and Thunderstorms this afternoon. Hazy. Highs in the lower 80s. Southwest Winds 15 to 20 Mph this afternoon. Chance of rain 70 percent.

Tonight 17 Jul Upper Rio Grande Valley

Hazy in the evening. Mostly cloudy with numerous Showers and scattered Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the lower 50s. East Winds around 15 Mph in the evening. Chance of rain 70 percent.

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Costilla Temperature Statistics

July Temperature

San Luis Valley Regional Airport (36.7 miles)

  • Lowest 8 July, 2025

    40.6 °F

  • Average July

    66.8 °F

  • Highest 9 July, 2025

    90.6 °F

Climate (2020–Present)

San Luis Valley Regional Airport (36.7 miles)

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  • Average Low 2020–2025

    26.3 °F

  • Average 2020–2025

    44.5 °F

  • Average High 2020–2025

    62.3 °F
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