Stewart Lake Weather Forecast

    • 29
    • 44

    Partly Sunny

    • 33
    • 47

    Mostly Sunny

    • 39
    • 55

    Chance Rain

    • 35
    • 54

    Rain Likely

    • 31
    • 40

    Snow

    • 27
    • 36

    Snow Likely

    • 30
    • 40

    Mostly Cloudy

Today 8 Apr Butte/Blackfoot Region

Mostly sunny. Highs in the 50s. West Winds to 15 Mph in the afternoon.

Tonight 8 Apr Butte/Blackfoot Region

Partly cloudy. Lows in the mid 20s to lower 30s. Northwest Winds to 15 Mph in the evening.

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Stewart Lake Temperature Statistics

April Temperature

Butte, Bert Mooney Airport (44.7 miles)

  • Lowest 4 April, 2026

    23 °F

  • Average April

    40.7 °F

  • Highest 5 April, 2026

    61 °F

Climate (2021–Present)

Butte, Bert Mooney Airport (44.7 miles)

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  • Average Low 2021–2026

    28.4 °F

  • Average 2021–2026

    42.3 °F

  • Average High 2021–2026

    55.6 °F
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