Granite State Park Weather Forecast

    • 27
    • 35

    Chance Rain/Snow

    • 30
    • 38

    Partly Sunny

    • 29
    • 41

    Partly Sunny

    • 33
    • 41

    Rain/Snow Likely

    • 22
    • 36

    Snow

    • 18
    • 27

    Chance Snow

    • 22
    • 30

    Snow Likely

Today 12 Dec Butte/Blackfoot Region

Mostly cloudy with a 50 percent chance of Areas of rain. Highs in the 40s. West Winds 15 to 25 Mph with Gusts to around 40 Mph.

Tonight 12 Dec Butte/Blackfoot Region

Partly cloudy. Lows in the upper 20s to mid 30s. Southwest Winds 15 to 25 Mph with Gusts to around 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Granite State Park Temperature Statistics

December Temperature

Butte, Bert Mooney Airport (43.5 miles)

  • Lowest 1 December, 2025

    3 °F

  • Average December

    32.4 °F

  • Highest 10 December, 2025

    51.1 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (43.5 miles)

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  • Average Low 2020–2025

    28 °F

  • Average 2020–2025

    41.8 °F

  • Average High 2020–2025

    55.1 °F
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