Buffalo Weather Forecast

    • 42
    • 68

    Mostly Sunny

    • 45
    • 72

    Increasing Clouds

    • 24
    • 55

    Rain

    • 23
    • 43

    Mostly Sunny

    • 23
    • 43

    Partly Sunny

    • 26
    • 47

    Mostly Cloudy

    • 25
    • 50

    Chance Rain/Snow

Today 21 Oct Judith Basin County and Judith Gap

Mostly sunny. A 20 percent chance of snow in the morning. Highs in the mid 40s.

Tonight 21 Oct Judith Basin County and Judith Gap

Mostly clear. Lows in the mid 40s. South Winds 5 to 15 Mph.

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Buffalo Temperature Statistics

October Temperature

Lewistown, Lewistown Municipal Airport (23 miles)

  • Lowest 13 October, 2026

    19.7 °F

  • Average October

    48.1 °F

  • Highest 5 October, 2026

    84.7 °F

Climate (2021–2026)

Lewistown, Lewistown Municipal Airport (23 miles)

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  • Average Low 2021–2026

    32.6 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    57 °F
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