Great Falls Weather Forecast

    • 35
    • 64

    Increasing Clouds

    • 39
    • 73

    Mostly Sunny

    • 42
    • 69

    Mostly Cloudy

    • 42
    • 70

    Mostly Sunny

    • 42
    • 72

    Mostly Sunny

    • 38
    • 66

    Partly Sunny

Today 30 Apr Cascade County below 5000ft

Mostly sunny. Highs in the lower 60s. West Winds up to 5 Mph shifting to the north in the afternoon.

Tonight 30 Apr Cascade County below 5000ft

Mostly clear. Lows in the mid 30s. Southeast Winds up to 10 Mph shifting to the south after midnight.

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Great Falls Temperature Statistics

April Temperature

Great Falls, Great Falls International Airport (3.7 miles)

  • Lowest 17 April, 2026

    18.6 °F

  • Average April

    43 °F

  • Highest 11 April, 2026

    71.7 °F

Climate (2021–Present)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Average Low 2021–2026

    34.4 °F

  • Average 2021–2026

    47 °F

  • Average High 2021–2026

    59.1 °F
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