Johnson Reservoir Weather Forecast

    • 46
    • 72

    Mostly Sunny

    • 38
    • 70

    Chance Rain Showers

    • 30
    • 52

    Chance Rain/Snow

    • 31
    • 49

    Chance Rain/Snow

    • 34
    • 54

    Chance Rain/Snow

    • 31
    • 52

    Chance Rain Showers

Today 9 Oct Owyhee Mountains

Sunny. Highs 70 to 77.

Tonight 9 Oct Owyhee Mountains

Mostly clear. Lows 47 to 55.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Reservoir Temperature Statistics

October Temperature

Mountain Home Air Force Base (46 miles)

  • Lowest 6 October, 2025

    40.1 °F

  • Average October

    56.4 °F

  • Highest 2 October, 2025

    75.4 °F

Climate (2020–Present)

Mountain Home Air Force Base (46 miles)

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  • Average Low 2020–2025

    39.7 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    64.9 °F
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