Stewart Lake Weather Forecast

    • 52
    • 72

    Sunny

    • 53
    • 71

    Mostly Sunny

    • 49
    • 68

    Partly Sunny

    • 48
    • 62

    Chance Rain Showers

    • 48
    • 61

    Chance Rain Showers

    • 50
    • 64

    Chance Rain Showers

Today 10 Aug Butte/Blackfoot Region

Mostly sunny. Smoke. Highs in the upper 70s to mid 80s. Northwest Winds 15 to 20 Mph with Gusts to around 35 Mph in the afternoon.

Tonight 10 Aug Butte/Blackfoot Region

Mostly clear. Patchy smoke in the Evening, then Areas of smoke after midnight. Lows in the 40s to lower 50s. West Winds 15 to 20 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stewart Lake Temperature Statistics

August Temperature

Butte, Bert Mooney Airport (44.7 miles)

  • Lowest 4 August, 2026

    36.6 °F

  • Average August

    63.9 °F

  • Highest 1 August, 2026

    95.6 °F

Climate (2021–2026)

Butte, Bert Mooney Airport (44.7 miles)

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  • Average Low 2021–2026

    28.4 °F

  • Average 2021–2026

    42.2 °F

  • Average High 2021–2026

    55.7 °F
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