Gallatin National Forest Weather Forecast

    • 36
    • 52

    Chance Rain Showers

    • 40
    • 57

    Mostly Sunny

    • 38
    • 56

    Mostly Sunny

    • 37
    • 47

    Partly Sunny

    • 35
    • 51

    Chance Rain Showers

    • 30
    • 41

    Chance Rain Showers

    • 31
    • 42

    Partly Sunny

Today 23 Sep Absaroka/Beartooth Mountains

Sunny. Highs in the lower 60s.

Tonight 23 Sep Absaroka/Beartooth Mountains

Partly cloudy. A 20 percent chance of rain Showers early in the evening. Patchy fog after 3 am. Lows in the lower 30s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gallatin National Forest Temperature Statistics

September Temperature

Livingston, Mission Field Airport (37.3 miles)

  • Lowest 15 September, 2026

    31.6 °F

  • Average September

    59.7 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Livingston, Mission Field Airport (37.3 miles)

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  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    60.2 °F
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