Stewart Lake Weather Forecast

    • 49
    • 62

    Mostly Sunny

    • 45
    • 62

    Mostly Sunny

    • 46
    • 62

    Mostly Sunny

    • 42
    • 63

    Partly Sunny

    • 27
    • 47

    Snow Likely

    • 25
    • 29

    Chance Snow

Today 6 Oct Butte/Blackfoot Region

Mostly sunny. Highs in the upper 60s to mid 70s.

Tonight 6 Oct Butte/Blackfoot Region

Mostly clear. Lows in the 30s to lower 40s.

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  • Temperature Real-Time

Stewart Lake Temperature Statistics

October Temperature

Butte, Bert Mooney Airport (44.7 miles)

  • Lowest 1 October, 2026

    34.6 °F

  • Average October

    52.4 °F

  • Highest 2 October, 2026

    73 °F

Climate (2021–2026)

Butte, Bert Mooney Airport (44.7 miles)

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  • Average Low 2021–2026

    28.6 °F

  • Average 2021–2026

    42.3 °F

  • Average High 2021–2026

    55.7 °F
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