Dullknife Reservoir Weather Forecast

    • 38
    • 50

    Isolated Thunderstorms

    • 40
    • 58

    Mostly Sunny

    • 45
    • 62

    Partly Sunny

    • 46
    • 65

    Mostly Sunny

    • 41
    • 64

    Slight Chance Thunderstorms

    • 42
    • 58

    Mostly Sunny

    • 46
    • 65

    Mostly Sunny

Today 17 Sep Bighorn Mountains Southeast

Cloudy with scattered rain Showers with isolated Thunderstorms. Near steady temperature in the lower 50s. North Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 17 Sep Bighorn Mountains Southeast

Partly cloudy early this Evening, then clearing. Lows around 40.

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Dullknife Reservoir Temperature Statistics

September Temperature

Buffalo - Johnson County Airport (29.8 miles)

  • Lowest 6 September, 2025

    43 °F

  • Average September

    64.4 °F

  • Highest 10 September, 2025

    87.1 °F

Climate (2020–Present)

Buffalo - Johnson County Airport (29.8 miles)

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  • Average Low 2020–2025

    36.5 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    58.8 °F
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