Johnson Dam Weather Forecast

    • 18
    • 34

    Increasing Clouds

    • 21
    • 43

    Partly Sunny

    • 15
    • 35

    Partly Sunny

    • 17
    • 38

    Mostly Cloudy

    • 20
    • 34

    Mostly Cloudy

    • 21
    • 40

    Partly Sunny

    • 21
    • 43

    Partly Sunny

Today 29 Dec Northern Perkins

Mostly sunny. Not as cool with Highs in the mid 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 29 Dec Northern Perkins

Mostly clear in the Evening, then becoming partly cloudy. Not as cool with Lows 15 to 20. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Dam Temperature Statistics

December Temperature

Hettinger, Hettinger Municipal Airport (20.5 miles)

  • Lowest 13 December, 2025

    -14.1 °F

  • Average December

    24.2 °F

  • Highest 26 December, 2025

    53.1 °F

Climate (2020–Present)

Hettinger, Hettinger Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    31.2 °F

  • Average 2020–2025

    44.9 °F

  • Average High 2020–2025

    58.4 °F
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