Granite State Park Weather Forecast

    • 36
    • 50

    Mostly Cloudy

    • 28
    • 47

    Snow

    • 25
    • 33

    Snow Likely

    • 27
    • 31

    Snow Likely

    • 27
    • 35

    Chance Snow

    • 27
    • 40

    Mostly Cloudy

    • 30
    • 48

    Mostly Sunny

Today 4 May Butte/Blackfoot Region

Mostly cloudy. Widespread frost early in the morning. Highs in the upper 50s to mid 60s. Southeast Winds 15 to 25 Mph.

Tonight 4 May Butte/Blackfoot Region

Mostly cloudy. Lows in the upper 30s to mid 40s. East Winds 15 to 20 Mph.

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  • Temperature Real-Time

Granite State Park Temperature Statistics

May Temperature

Butte, Bert Mooney Airport (43.5 miles)

  • Lowest 1 May, 2024

    21.9 °F

  • Average May

    34.4 °F

  • Highest 2 May, 2024

    46.9 °F

Climate (2019–Present)

Butte, Bert Mooney Airport (43.5 miles)

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  • Average Low 2019–2024

    27.9 °F

  • Average 2019–2024

    41.2 °F

  • Average High 2019–2024

    54 °F
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