Stewart Lake Weather Forecast

    • 51
    • 72

    Chance Thunderstorms

    • 51
    • 70

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 60
    • 78

    Partly Sunny

    • 59
    • 76

    Slight Chance Thunderstorms

Today 8 Jul Butte/Blackfoot Region

Mostly sunny. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s to mid 80s.

Tonight 8 Jul Butte/Blackfoot Region

Mostly cloudy with a 20 percent chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stewart Lake Temperature Statistics

July Temperature

Butte, Bert Mooney Airport (44.7 miles)

  • Lowest 2 July, 2026

    40.6 °F

  • Average July

    61.1 °F

  • Highest 5 July, 2026

    87.1 °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

    55.6 °F
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