Lake Otatsy Weather Forecast

    • 29
    • 45

    Mostly Cloudy

    • 27
    • 44

    Partly Sunny

    • 26
    • 42

    Mostly Cloudy

    • 34
    • 40

    Rain Likely

    • 31
    • 44

    Snow Likely

    • 25
    • 35

    Snow Likely

    • 29
    • 39

    Slight Chance Snow

Today 15 Oct Butte/Blackfoot Region

Mostly cloudy. Slight chance of rain and snow in the Morning, then Areas of rain in the afternoon. Patchy fog in the morning. Chance of precipitation 50 percent. Highs in the mid 40s to lower 50s.

Tonight 15 Oct Butte/Blackfoot Region

Cloudy. Areas of frost late in the evening. Patchy fog after midnight. Widespread frost after midnight. A 20 percent chance of rain and snow late in the night. Lows in the mid 20s to lower 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Otatsy Temperature Statistics

October Temperature

Missoula, Missoula International Airport (52.8 miles)

  • Lowest 6 October, 2025

    27 °F

  • Average October

    49.2 °F

  • Highest 10 October, 2025

    81 °F

Climate (2020–Present)

Missoula, Missoula International Airport (52.8 miles)

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  • Average Low 2020–2025

    35.6 °F

  • Average 2020–2025

    47.1 °F

  • Average High 2020–2025

    59.3 °F
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