Sandstone Reservoir Weather Forecast

    • 20
    • 58

    Chance Rain/Snow

    • 17
    • 38

    Mostly Sunny

    • 26
    • 41

    Mostly Cloudy

    • 27
    • 52

    Mostly Cloudy

    • 30
    • 51

    Partly Sunny

    • 28
    • 57

    Partly Sunny

Today 19 Dec North Bighorn Basin

Partly cloudy. A chance of rain Showers this afternoon. Windy with Highs in the mid 50s. South Winds 20 to 25 Mph, becoming southwest 20 to 30 Mph this afternoon. Gusts up to 50 Mph. Chance of rain 30 percent.

Tonight 19 Dec North Bighorn Basin

Mostly cloudy with snow Showers likely with a chance of rain Showers in the Evening, then mostly clear after midnight. Snow accumulation up to 1 inch. Breezy with Lows in the lower 20s. North Winds 20 to 25 Mph with Gusts up to 40 Mph, becoming west 10 to 15 Mph with Gusts up to 30 Mph after midnight. Chance of precipitation 60 percent.

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Sandstone Reservoir Temperature Statistics

December Temperature

South Big Horn County Airport (14.9 miles)

  • Lowest 1 December, 2025

    3.9 °F

  • Average December

    31.9 °F

  • Highest 17 December, 2025

    57.9 °F

Climate (2020–Present)

South Big Horn County Airport (14.9 miles)

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  • Average Low 2020–2025

    33.8 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    61.4 °F
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