Timberline Lake Weather Forecast

    • 37
    • 55

    Rain/Snow Likely

    • 38
    • 48

    Chance Rain Showers

    • 42
    • 54

    Partly Sunny

    • 39
    • 55

    Breezy

    • 35
    • 48

    Breezy

    • 36
    • 48

    Chance Snow Showers

    • 32
    • 43

    Chance Rain/Snow

Today 22 Sep Absaroka/Beartooth Mountains

Mostly sunny. Highs in the upper 50s.

Tonight 22 Sep Absaroka/Beartooth Mountains

Rain Showers likely and slight chance of Thunderstorms in the Evening, then rain Showers overnight. Patchy fog after 3 am. Lows in the upper 30s. West Winds 5 to 10 Mph. Chance of precipitation 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Timberline Lake Temperature Statistics

September Temperature

Powell Municipal Airport (39.1 miles)

  • Lowest 15 September, 2026

    37.4 °F

  • Average September

    61.2 °F

  • Highest 4 September, 2026

    87.8 °F

Climate (2021–2026)

Powell Municipal Airport (39.1 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    57.3 °F
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