Rainbow Lake Weather Forecast

    • 27
    • 32

    Mostly Cloudy

    • 28
    • 34

    Mostly Cloudy

    • 26
    • 40

    Partly Sunny

    • 24
    • 31

    Mostly Cloudy

    • 25
    • 34

    Mostly Cloudy

    • 27
    • 40

    Partly Sunny

    • 25
    • 41

    Mostly Sunny

Today 30 Jan Butte/Blackfoot Region

Mostly cloudy. Slight chance of snow late in the morning. Slight chance of rain and snow early in the afternoon. Chance of precipitation 20 percent. Highs in the upper 30s to mid 40s. Southwest Winds to 15 Mph in the afternoon.

Tonight 30 Jan Butte/Blackfoot Region

Mostly cloudy until early morning then becoming partly cloudy. Lows in the upper 20s to mid 30s. Southwest Winds 15 to 20 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Lake Temperature Statistics

January Temperature

Butte, Bert Mooney Airport (42.9 miles)

  • Lowest 24 January, 2026

    -6.4 °F

  • Average January

    26.8 °F

  • Highest 14 January, 2026

    52.6 °F

Climate (2021–Present)

Butte, Bert Mooney Airport (42.9 miles)

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  • Average Low 2021–2026

    28.1 °F

  • Average 2021–2026

    41.9 °F

  • Average High 2021–2026

    55.3 °F
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