Georgetown Lake Weather Forecast

    • 23
    • 42

    Clearing Late

    • 32
    • 48

    Partly Sunny

    • 33
    • 55

    Chance Rain

    • 23
    • 41

    Chance Rain

    • 34
    • 46

    Chance Rain

    • 31
    • 45

    Slight Chance Rain

    • 33
    • 50

    Mostly Cloudy

Today 30 Oct Butte/Blackfoot Region

Mostly sunny. Patchy fog early in the morning. Highs in the 40s.

Tonight 30 Oct Butte/Blackfoot Region

Mostly clear early in the evening then becoming mostly cloudy. Widespread frost in the late evening and overnight. Lows 19 to 26.

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Georgetown Lake Temperature Statistics

October Temperature

Butte, Bert Mooney Airport (41 miles)

  • Lowest 6 October, 2025

    19.9 °F

  • Average October

    42.1 °F

  • Highest 9 October, 2025

    71.1 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (41 miles)

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  • Average Low 2020–2025

    27.8 °F

  • Average 2020–2025

    41.7 °F

  • Average High 2020–2025

    55 °F
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