Gallatin National Forest Weather Forecast

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    • 54

    Rain Showers

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    • 40

    Rain Showers

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    • 45

    Chance Rain Showers

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    • 53

    Mostly Sunny

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    • 55

    Partly Sunny

    • 39
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    Mostly Sunny

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    Partly Sunny

Today 18 Sep Absaroka/Beartooth Mountains

Mostly sunny. Highs in the lower 70s.

Tonight 18 Sep Absaroka/Beartooth Mountains

Rain Showers and chance of Thunderstorms in the Evening, then rain Showers likely overnight. Patchy fog in the late evening and overnight. Areas of fog after 3 am. Some Thunderstorms may produce heavy rainfall early in the evening. Some Thunderstorms may produce heavy rainfall late in the evening. Lows in the upper 30s. Northeast Winds 5 to 10 Mph. Chance of precipitation 90 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

    60.4 °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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