Manderson Weather Forecast

    • 43
    • 81

    Mostly Sunny

    • 45
    • 81

    Partly Sunny

    • 45
    • 82

    Mostly Sunny

    • 47
    • 80

    Chance Rain Showers

    • 39
    • 70

    Mostly Sunny

    • 41
    • 76

    Mostly Sunny

Today 18 Sep North Bighorn Basin

Sunny. Highs in the upper 70s. Southeast Winds around 10 Mph.

Tonight 18 Sep North Bighorn Basin

Mostly clear. Lows in the upper 40s. West Winds around 10 Mph after midnight.

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Manderson Temperature Statistics

September Temperature

South Big Horn County Airport (18 miles)

  • Lowest 6 September, 2025

    39 °F

  • Average September

    65.6 °F

  • Highest 2 September, 2025

    93 °F

Climate (2020–Present)

South Big Horn County Airport (18 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    61.2 °F
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