Gallatin National Forest Weather Forecast

    • 37
    • 55

    Rain Showers Likely

    • 37
    • 52

    Slight Chance Rain Showers

    • 42
    • 58

    Mostly Sunny

    • 39
    • 59

    Partly Sunny

    • 36
    • 51

    Partly Sunny

    • 36
    • 52

    Chance Rain/Snow

Today 22 Sep Absaroka/Beartooth Mountains

Mostly sunny in the morning and early Afternoon, then mostly cloudy with a 20 percent chance of rain Showers late in the afternoon. Highs in the upper 60s. Southwest Winds 5 to 10 Mph.

Tonight 22 Sep Absaroka/Beartooth Mountains

Slight chance of Thunderstorms in the evening. Rain Showers through the night. Lows in the mid 30s. West Winds 5 to 10 Mph. Chance of precipitation 80 percent.

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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

    59.6 °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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