San Luis Weather Forecast

    • 43
    • 71

    Mostly Sunny

    • 42
    • 72

    Mostly Sunny

    • 44
    • 71

    Partly Sunny

    • 46
    • 68

    Rain Showers Likely

    • 45
    • 65

    Chance Thunderstorms

    • 45
    • 66

    Rain Showers Likely

    • 45
    • 65

    Rain Showers Likely

Today 19 Sep Southern San Luis Valley

Partly sunny with a 30 percent chance of Thunderstorms. Highs 66 to 71.

Tonight 19 Sep Southern San Luis Valley

Mostly clear. Lows 37 to 44. Southwest Winds 10 to 15 Mph with Gusts to around 35 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Luis Temperature Statistics

September Temperature

La Veta Mountain, La Veta Pass (24.9 miles)

  • Lowest 1 September, 2026

    44.6 °F

  • Average September

    56.2 °F

  • Highest 5 September, 2026

    73.4 °F

Climate (2021–2026)

La Veta Mountain, La Veta Pass (24.9 miles)

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  • Average Low 2021–2026

    31.3 °F

  • Average 2021–2026

    39 °F

  • Average High 2021–2026

    48.4 °F
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