Fort Shaw Weather Forecast

    • 54
    • 89

    Patchy Smoke

    • 55
    • 92

    Mostly Sunny

    • 57
    • 86

    Partly Sunny

    • 56
    • 89

    Chance Rain Showers

    • 51
    • 85

    Mostly Sunny

    • 53
    • 86

    Mostly Sunny

Today 19 Aug Cascade County below 5000ft

Sunny. Patchy smoke in the afternoon. Highs 84 to 90. West Winds 5 to 15 Mph.

Tonight 19 Aug Cascade County below 5000ft

Mostly clear. Patchy smoke after midnight. Lows in the mid 50s. North Winds 5 to 10 Mph shifting to the south after midnight.

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Fort Shaw Temperature Statistics

August Temperature

Great Falls, Great Falls International Airport (19.9 miles)

  • Lowest 4 August, 2026

    38.6 °F

  • Average August

    65.9 °F

  • Highest 1 August, 2026

    102.7 °F

Climate (2021–2026)

Great Falls, Great Falls International Airport (19.9 miles)

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  • Average Low 2021–2026

    34.3 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59 °F
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