Whetstone Lake Weather Forecast

    • 53
    • 80

    Areas Smoke

    • 53
    • 81

    Slight Chance Thunderstorms

    • 56
    • 82

    Sunny

    • 48
    • 87

    Mostly Sunny

    • 41
    • 70

    Sunny

    • 43
    • 69

    Sunny

    • 48
    • 74

    Mostly Sunny

Today 29 Jul Bitterroot/Sapphire Mountains

Sunny. Areas of smoke in the Morning, then patchy smoke in the afternoon. Highs in the 80s to lower 90s.

Tonight 29 Jul Bitterroot/Sapphire Mountains

Mostly clear. Patchy smoke. Lows in the upper 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Whetstone Lake Temperature Statistics

July Temperature

Butte, Bert Mooney Airport (54.1 miles)

  • Lowest 2 July, 2026

    40.6 °F

  • Average July

    68 °F

  • Highest 11 July, 2026

    95.6 °F

Climate (2021–2026)

Butte, Bert Mooney Airport (54.1 miles)

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  • Average Low 2021–2026

    28.5 °F

  • Average 2021–2026

    42.2 °F

  • Average High 2021–2026

    55.6 °F
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