Lost Lake Weather Forecast

    • 44
    • 68

    Increasing Clouds

    • 26
    • 54

    Rain/Snow

    • 26
    • 40

    Partly Sunny

    • 25
    • 40

    Partly Sunny

    • 28
    • 44

    Mostly Cloudy

    • 28
    • 45

    Chance Rain/Snow

Today 22 Oct Western and Central Chouteau County

Sunny. Highs in the lower 70s. South Winds up to 5 Mph shifting to the east in the afternoon.

Tonight 22 Oct Western and Central Chouteau County

Partly cloudy. Lows in the lower 40s. East Winds up to 10 Mph with Gusts to around 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

October Temperature

Malmstrom Air Force Base (33.6 miles)

  • Lowest 12 October, 2026

    28.4 °F

  • Average October

    51 °F

  • Highest 5 October, 2026

    85.6 °F

Climate (2021–2026)

Malmstrom Air Force Base (33.6 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    59.1 °F
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