Grant Marsh Wildlife Management Area Weather Forecast

    • 25
    • 53

    Mostly Sunny

    • 33
    • 64

    Mostly Sunny

    • 39
    • 75

    Partly Sunny

    • 36
    • 64

    Mostly Sunny

    • 39
    • 68

    Partly Sunny

    • 38
    • 65

    Partly Sunny

Today 15 Oct Northern Big Horn

Sunny. Patchy fog early in the morning. Highs in the lower 50s. Northwest Winds 10 to 20 Mph.

Tonight 15 Oct Northern Big Horn

Mostly clear. Lows in the mid 20s. North Winds 5 to 10 Mph in the evening shifting to the southeast overnight.

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Grant Marsh Wildlife Management Area Temperature Statistics

October Temperature

Billings, Billings Logan International Airport (45.4 miles)

  • Lowest 12 October, 2026

    32 °F

  • Average October

    57 °F

  • Highest 5 October, 2026

    88.6 °F

Climate (2021–2026)

Billings, Billings Logan International Airport (45.4 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    61.2 °F
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