Whetstone Lake Weather Forecast

    • 30
    • 49

    Becoming Sunny

    • 36
    • 57

    Mostly Sunny

    • 37
    • 61

    Partly Sunny

    • 37
    • 59

    Chance Rain

    • 36
    • 61

    Mostly Sunny

    • 34
    • 58

    Partly Sunny

Today 30 Apr Bitterroot/Sapphire Mountains

Mostly sunny. Highs in the 50s.

Tonight 30 Apr Bitterroot/Sapphire Mountains

Mostly clear. Lows in the upper 20s to mid 30s.

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Whetstone Lake Temperature Statistics

April Temperature

Butte, Bert Mooney Airport (54.1 miles)

  • Lowest 18 April, 2026

    16.6 °F

  • Average April

    41.4 °F

  • Highest 19 April, 2026

    66 °F

Climate (2021–Present)

Butte, Bert Mooney Airport (54.1 miles)

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  • Average Low 2021–2026

    28.5 °F

  • Average 2021–2026

    42.4 °F

  • Average High 2021–2026

    55.8 °F
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