Big Sky Field Weather Forecast

    • 49
    • 76

    Partly Sunny

    • 47
    • 68

    Chance Rain Showers

    • 47
    • 70

    Partly Sunny

    • 50
    • 77

    Partly Sunny

    • 49
    • 82

    Partly Sunny

    • 46
    • 75

    Mostly Sunny

Today 17 Sep Eastern Roosevelt

Mostly sunny. Highs in the mid 70s. North wind 5 to 10 Mph.

Tonight 17 Sep Eastern Roosevelt

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows around 50. Northeast wind 5 to 10 Mph. Chance of rain 20 percent.

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Big Sky Field Temperature Statistics

September Temperature

Sidney-Richland (34.2 miles)

  • Lowest 3 September, 2025

    46 °F

  • Average September

    60.9 °F

  • Highest 1 September, 2025

    90 °F

Climate (2020–Present)

Sidney-Richland (34.2 miles)

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  • Average Low 2020–2025

    31.9 °F

  • Average 2020–2025

    44 °F

  • Average High 2020–2025

    56.2 °F
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