Granite State Park Weather Forecast

    • 39
    • 62

    Mostly Sunny

    • 36
    • 59

    Mostly Sunny

    • 41
    • 65

    Mostly Sunny

    • 44
    • 68

    Partly Sunny

    • 46
    • 70

    Partly Sunny

    • 40
    • 62

    Partly Sunny

Today 21 Jun Butte/Blackfoot Region

Mostly sunny. Highs in the upper 60s to mid 70s. Northwest Winds to 15 Mph in the afternoon.

Tonight 21 Jun Butte/Blackfoot Region

Partly cloudy. Lows in the upper 30s to mid 40s. Northwest Winds to 15 Mph.

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Granite State Park Temperature Statistics

June Temperature

Butte, Bert Mooney Airport (43.5 miles)

  • Lowest 8 June, 2026

    28.7 °F

  • Average June

    54 °F

  • Highest 16 June, 2026

    81.6 °F

Climate (2021–2026)

Butte, Bert Mooney Airport (43.5 miles)

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  • Average Low 2021–2026

    28.5 °F

  • Average 2021–2026

    42.3 °F

  • Average High 2021–2026

    55.7 °F
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