Big Sandy Reservoir Weather Forecast

    • 4
    • 24

    Partly Sunny

    • 6
    • 29

    Increasing Clouds

    • 7
    • 33

    Partly Sunny

    • 13
    • 37

    Partly Sunny

    • 15
    • 41

    Mostly Cloudy

    • 12
    • 41

    Mostly Sunny

    • 7
    • 39

    Mostly Sunny

Today 9 Jan Upper Green River Basin

Mostly sunny. Highs in the mid 20s. Northwest Winds 10 to 15 Mph.

Tonight 9 Jan Upper Green River Basin

Mostly clear. Cold with Lows 4 to 8 above. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Big Sandy Reservoir Temperature Statistics

January Temperature

South Pass (37.3 miles)

  • Lowest

  • Average January

  • Highest

Climate (2021–Present)

South Pass (37.3 miles)

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  • Average Low 2021–2024

    29.2 °F
  • Average 2021–2024

    36.7 °F
  • Average High 2021–2024

    44.1 °F
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