Siphon Lakes Weather Forecast

    • 64
    • 88

    Slight Chance Rain Showers

    • 60
    • 78

    Chance Rain Showers

    • 53
    • 78

    Chance Rain Showers

    • 54
    • 71

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

    • 58
    • 79

    Partly Sunny

Today 27 Aug Boise Mountains

Partly cloudy with a 30 percent chance of Showers. Patchy smoke in the morning. Areas of smoke in the afternoon. Highs 78 to 93.

Tonight 27 Aug Boise Mountains

Increasing Clouds. Areas of smoke in the evening. Patchy smoke after midnight. Lows 47 to 62.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siphon Lakes Temperature Statistics

August Temperature

Boise Air Terminal (20.5 miles)

  • Lowest 3 August, 2026

    54.6 °F

  • Average August

    79.9 °F

  • Highest 1 August, 2026

    101.6 °F

Climate (2021–2026)

Boise Air Terminal (20.5 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    66.3 °F
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