Big Timber Weather Forecast

    • 44
    • 71

    Patchy Fog

    • 45
    • 78

    Mostly Sunny

    • 48
    • 77

    Partly Sunny

    • 50
    • 83

    Mostly Sunny

    • 47
    • 80

    Slight Chance Thunderstorms

    • 49
    • 78

    Mostly Sunny

    • 51
    • 83

    Mostly Sunny

Today 17 Sep Northern Sweet Grass

Sunny, warmer. Highs in the lower 70s. East Winds 5 to 10 Mph.

Tonight 17 Sep Northern Sweet Grass

Mostly clear. Patchy fog overnight. Lows in the mid 40s. Southeast Winds 5 to 10 Mph in the evening shifting to the southwest overnight.

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Big Timber Temperature Statistics

September Temperature

Livingston, Mission Field Airport (25.5 miles)

  • Lowest 6 September, 2025

    33.1 °F

  • Average September

    62.1 °F

  • Highest 3 September, 2025

    91 °F

Climate (2020–Present)

Livingston, Mission Field Airport (25.5 miles)

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  • Average Low 2020–2025

    34.4 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    59.6 °F
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