Rainbow Lake Weather Forecast

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    • 36

    Mostly Cloudy

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    • 33

    Snow Likely

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    • 36

    Chance Snow

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    • 36

    Chance Snow

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    Chance Rain/Snow

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    Snow Likely

Today 14 Oct Butte/Blackfoot Region

Mostly cloudy. A chance of snow in the Morning, then slight chance of rain in the afternoon. Chance of precipitation 50 percent. Highs in the 40s to lower 50s.

Tonight 14 Oct Butte/Blackfoot Region

Mostly cloudy. Slight chance of rain in the Evening, then a chance of rain and snow after midnight. Patchy fog after midnight. Chance of precipitation 50 percent. Lows in the 20s to lower 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Lake Temperature Statistics

October Temperature

Butte, Bert Mooney Airport (42.9 miles)

  • Lowest 6 October, 2025

    19.9 °F

  • Average October

    47.4 °F

  • Highest 9 October, 2025

    71.1 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (42.9 miles)

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  • Average Low 2020–2025

    27.7 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    55 °F
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