Johnson Dam Weather Forecast

    • 54
    • 80

    Chance Rain Showers

    • 53
    • 76

    Rain Showers

    • 48
    • 76

    Rain Showers Likely

    • 46
    • 73

    Chance Thunderstorms

    • 48
    • 77

    Chance Thunderstorms

    • 48
    • 79

    Chance Thunderstorms

Today 29 May Northern Perkins

Partly cloudy and breezy. Highs around 80. Southeast Winds 20 to 30 Mph with Gusts up to 45 Mph.

Tonight 29 May Northern Perkins

Partly cloudy in the Evening, then cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Breezy with Lows in the mid 50s. Southeast Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Dam Temperature Statistics

May Temperature

Hettinger, Hettinger Municipal Airport (20.5 miles)

  • Lowest 6 May, 2026

    17.7 °F

  • Average May

    52.4 °F

  • Highest 26 May, 2026

    88 °F

Climate (2021–Present)

Hettinger, Hettinger Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    31.2 °F

  • Average 2021–2026

    45 °F

  • Average High 2021–2026

    58.7 °F
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