Whetstone Lake Weather Forecast

    • 26
    • 44

    Mostly Cloudy

    • 28
    • 43

    Partly Sunny

    • 28
    • 43

    Chance Snow

    • 36
    • 46

    Rain Likely

    • 28
    • 47

    Snow

    • 23
    • 37

    Chance Snow

Today 15 Oct Bitterroot/Sapphire Mountains

Mostly cloudy. Slight chance of rain and snow in the Morning, then Areas of rain in the afternoon. Widespread frost and patchy fog in the morning. Chance of precipitation 30 percent. Highs in the mid 40s to lower 50s.

Tonight 15 Oct Bitterroot/Sapphire Mountains

Mostly cloudy with a 30 percent chance of rain and snow. Widespread frost after midnight. Lows in the mid 20s to lower 30s.

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Whetstone Lake Temperature Statistics

October Temperature

Butte, Bert Mooney Airport (54.1 miles)

  • Lowest 6 October, 2025

    19.9 °F

  • Average October

    45.3 °F

  • Highest 9 October, 2025

    71.1 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (54.1 miles)

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  • Average Low 2020–2025

    27.7 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    55 °F
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