Alta Weather Forecast

    • 58
    • 75

    Chance Rain Showers

    • 56
    • 72

    Chance Thunderstorms

    • 58
    • 75

    Chance Rain Showers

    • 59
    • 77

    Slight Chance Thunderstorms

    • 55
    • 79

    Chance Thunderstorms

    • 53
    • 72

    Chance Thunderstorms

Today 18 Sep Buena Vista

Patchy fog this morning. Partly sunny this Morning, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 18 Sep Buena Vista

Mostly cloudy with a slight chance of Thunderstorms. A chance of Showers. Lows in the upper 50s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

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Alta Temperature Statistics

September Temperature

Storm Lake (6.2 miles)

  • Lowest 6 September, 2025

    39.2 °F

  • Average September

    65.1 °F

  • Highest 13 September, 2025

    95 °F

Climate (2020–Present)

Storm Lake (6.2 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    58.5 °F
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