Johnson Dam Weather Forecast

    • 70
    • 97

    Chance Thunderstorms

    • 59
    • 89

    Chance Thunderstorms

    • 50
    • 81

    Mostly Sunny

    • 47
    • 75

    Sunny

    • 44
    • 72

    Mostly Sunny

    • 49
    • 74

    Partly Sunny

    • 51
    • 77

    Mostly Sunny

Today 20 Aug Northern Perkins

Breezy, sunny. Near steady temperature in the mid 90s. South Winds 20 to 30 Mph.

Tonight 20 Aug Northern Perkins

Mostly clear in the Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. Southeast Winds 10 to 20 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

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Johnson Dam Temperature Statistics

August Temperature

Hettinger, Hettinger Municipal Airport (20.5 miles)

  • Lowest 12 August, 2025

    44.7 °F

  • Average August

    69.7 °F

  • Highest 14 August, 2025

    92.6 °F

Climate (2020–Present)

Hettinger, Hettinger Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    31 °F

  • Average 2020–2025

    44.7 °F

  • Average High 2020–2025

    58.3 °F
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