Stewart Lake Weather Forecast

    • 36
    • 62

    Chance Rain/Snow

    • 23
    • 39

    Snow

    • 25
    • 27

    Snow

    • 30
    • 35

    Partly Sunny

    • 32
    • 41

    Partly Sunny

    • 32
    • 40

    Chance Rain/Snow

Today 9 Oct Butte/Blackfoot Region

Mostly sunny. Highs in the upper 60s to mid 70s. Windy with southwest Winds 20 to 30 Mph. Gusts up to 35 Mph increasing to 45 Mph in the afternoon.

Tonight 9 Oct Butte/Blackfoot Region

Partly cloudy in the evening then becoming mostly cloudy. Lows in the 30s to lower 40s. West Winds to 15 Mph with Gusts to around 30 Mph.

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Stewart Lake Temperature Statistics

October Temperature

Butte, Bert Mooney Airport (44.7 miles)

  • Lowest 7 October, 2026

    28.9 °F

  • Average October

    54.6 °F

  • Highest 5 October, 2026

    79 °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

    55.8 °F
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