Johnson Dam Weather Forecast

    • 51
    • 79

    Slight Chance Rain Showers

    • 48
    • 78

    Mostly Sunny

    • 54
    • 90

    Mostly Sunny

    • 44
    • 79

    Breezy

    • 43
    • 69

    Chance Rain Showers

    • 41
    • 65

    Chance Rain Showers

Today 8 Sep Northern Perkins

Sunny, breezy with Highs in the upper 70s. West Winds 20 to 30 Mph with Gusts up to 45 Mph.

Tonight 8 Sep Northern Perkins

Mostly clear with a 20 percent chance of Showers. Lows in the lower 50s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Dam Temperature Statistics

September Temperature

Hettinger, Hettinger Municipal Airport (20.5 miles)

  • Lowest 1 September, 2026

    44.7 °F

  • Average September

    69.5 °F

  • Highest 4 September, 2026

    92.6 °F

Climate (2021–2026)

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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