San Isidro Lake Weather Forecast

    • 43
    • 67

    Thunderstorms

    • 44
    • 72

    Mostly Sunny

    • 46
    • 74

    Mostly Sunny

    • 45
    • 74

    Chance Thunderstorms

    • 43
    • 72

    Chance Thunderstorms

    • 46
    • 73

    Slight Chance Thunderstorms

    • 48
    • 74

    Chance Thunderstorms

Today 13 Sep East Slopes Sangre de Cristo Mountains

Mostly cloudy. Scattered Showers and Thunderstorms this Morning, then numerous Showers and Thunderstorms this afternoon. Highs in the mid 60s. Southwest Winds 15 to 20 Mph. Chance of rain 70 percent.

Tonight 13 Sep East Slopes Sangre de Cristo Mountains

Partly cloudy with isolated rain Showers and Thunderstorms this Evening, then mostly clear after midnight. Lows in the lower 40s. West Winds 15 to 20 Mph. Chance of rain 20 percent.

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San Isidro Lake Temperature Statistics

September Temperature

Las Vegas Municipal Airport (16.2 miles)

  • Lowest 8 September, 2025

    48 °F

  • Average September

    62.5 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Las Vegas Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    65.7 °F
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