Lava Mountain Weather Forecast

    • 36
    • 48

    Rain Showers Likely

    • 33
    • 46

    Slight Chance Thunderstorms

    • 38
    • 53

    Mostly Sunny

    • 38
    • 51

    Partly Sunny

    • 36
    • 48

    Slight Chance Thunderstorms

    • 35
    • 48

    Chance Rain Showers

Today 22 Sep Teton and Gros Ventre Mountains

Partly cloudy in the Morning, then mostly cloudy with rain Showers likely with a chance of Thunderstorms in the afternoon. Highs in the mid 50s. Southwest Winds around 10 Mph in the afternoon. Chance of rain 60 percent.

Tonight 22 Sep Teton and Gros Ventre Mountains

Mostly cloudy. Rain Showers likely with a chance of Thunderstorms in the Evening, then a chance of rain Showers after midnight. Lows in the upper 30s. Chance of rain 70 percent.

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  • Temperature Real-Time

Lava Mountain Temperature Statistics

September Temperature

Dubois Municipal Airport (18.6 miles)

  • Lowest 15 September, 2026

    30.2 °F

  • Average September

    54.8 °F

  • Highest 5 September, 2026

    77 °F

Climate (2021–2026)

Dubois Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    30.4 °F

  • Average 2021–2026

    41.3 °F

  • Average High 2021–2026

    53.1 °F
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