Lost Lake Weather Forecast

    • 53
    • 72

    Increasing Clouds

    • 48
    • 62

    Rain Showers

    • 48
    • 62

    Rain Likely

    • 54
    • 73

    Mostly Sunny

    • 52
    • 76

    Partly Sunny

    • 46
    • 66

    Chance Rain Showers

Today 6 Sep Western and Central Chouteau County

Mostly cloudy. Patchy fog early in the morning. Chance of rain Showers and slight chance of Thunderstorms early in the Morning, then slight chance of rain late in the morning. Highs in the mid 70s. Northwest Winds up to 10 Mph shifting to the north in the afternoon. Chance of precipitation 50 percent.

Tonight 6 Sep Western and Central Chouteau County

Chance of Thunderstorms in the Evening, then rain Showers and chance of Thunderstorms after midnight. Patchy fog after midnight. Some Thunderstorms may be severe with large hail in the evening. Lows in the lower 50s. North Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

September Temperature

Malmstrom Air Force Base (33.6 miles)

  • Lowest 1 September, 2026

    51.4 °F

  • Average September

    68.6 °F

  • Highest 2 September, 2026

    87.7 °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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