Big Lake Weather Forecast

    • 56
    • 74

    Mostly Sunny

    • 53
    • 83

    Mostly Sunny

    • 48
    • 76

    Mostly Sunny

    • 45
    • 72

    Mostly Sunny

    • 49
    • 71

    Partly Sunny

    • 48
    • 79

    Partly Sunny

    • 36
    • 60

    Chance Rain/Snow

Today 4 Oct Western and Central Chouteau County

Mostly cloudy. A 50 percent chance of rain and snow. Lows in the mid 30s. Highs around 50.

Tonight 4 Oct Western and Central Chouteau County

Mostly clear. Lows 46 to 54. Southeast Winds 5 to 10 Mph shifting to the southwest with Gusts to around 30 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Lake Temperature Statistics

October Temperature

Malmstrom Air Force Base (37.3 miles)

  • Lowest 1 October, 2026

    39.6 °F

  • Average October

    55.3 °F

  • Highest 2 October, 2026

    75.7 °F

Climate (2021–2026)

Malmstrom Air Force Base (37.3 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    59 °F
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