Gallatin National Forest Weather Forecast

    • 35
    • 42

    Chance Thunderstorms

    • 34
    • 45

    Decreasing Clouds

    • 36
    • 53

    Mostly Sunny

    • 40
    • 56

    Partly Sunny

    • 39
    • 55

    Slight Chance Thunderstorms

    • 41
    • 58

    Mostly Sunny

    • 40
    • 58

    Partly Sunny

Today 19 Sep Absaroka/Beartooth Mountains

Partly sunny. Chance of rain Showers and slight chance of Thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 30 percent.

Tonight 19 Sep Absaroka/Beartooth Mountains

Rain Showers likely and slight chance of Thunderstorms early in the Evening, then chance of rain Showers in the late evening and 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. Lows in the lower 30s. Light and variable Winds. Chance of precipitation 70 percent.

Graph Plots Open in Graphs

  • 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

    60.1 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Livingston, Mission Field Airport (37.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    60.2 °F
Get WillyWeather+ to remove ads