Bighorn Lake Weather Forecast

    • 63
    • 90

    Mostly Cloudy

    • 60
    • 83

    Chance Rain Showers

    • 57
    • 83

    Rain Showers Likely

    • 55
    • 80

    Rain Showers Likely

    • 56
    • 82

    Slight Chance Thunderstorms

    • 56
    • 86

    Mostly Sunny

Today 26 Aug North Bighorn Basin

Partly cloudy this Morning, then becoming mostly cloudy. Highs in the mid 80s. Southeast Winds around 10 Mph this afternoon.

Tonight 26 Aug North Bighorn Basin

Cloudy. Lows around 60. North Winds around 10 Mph.

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Bighorn Lake Temperature Statistics

August Temperature

Cowley WY (13 miles)

  • Lowest 9 August, 2025

    48.2 °F

  • Average August

    73.5 °F

  • Highest 19 August, 2025

    100.4 °F

Climate (2020–Present)

Cowley WY (13 miles)

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  • Average Low 2020–2025

    34 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    59.4 °F
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