Washington Park Weather Forecast

    • 48
    • 67

    Rain Showers

    • 46
    • 69

    Isolated Thunderstorms

    • 45
    • 73

    Mostly Sunny

    • 48
    • 77

    Partly Sunny

    • 49
    • 80

    Partly Sunny

    • 47
    • 78

    Isolated Thunderstorms

Today 16 Sep North Bighorn Basin

Mostly sunny. Patchy fog this morning. Scattered Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds and small hail this afternoon. Highs around 70. Northwest Winds 10 to 15 Mph this afternoon. Chance of rain 30 percent.

Tonight 16 Sep North Bighorn Basin

Mostly clear with scattered Showers with isolated Thunderstorms in the Evening, then partly cloudy after midnight. Some Thunderstorms may produce gusty Winds and small hail in the evening. Lows in the upper 40s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

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Washington Park Temperature Statistics

September Temperature

Powell Municipal Airport (7.5 miles)

  • Lowest 5 September, 2025

    39.2 °F

  • Average September

    64.2 °F

  • Highest 2 September, 2025

    87.8 °F

Climate (2020–Present)

Powell Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    34.6 °F

  • Average 2020–2025

    45.2 °F

  • Average High 2020–2025

    56.5 °F
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