Great Falls Weather Forecast

    • 27
    • 50

    Slight Chance Rain/Snow

    • 33
    • 59

    Chance Rain Showers

    • 34
    • 58

    Chance Rain Showers

    • 38
    • 68

    Mostly Sunny

    • 40
    • 74

    Partly Sunny

    • 39
    • 66

    Chance Rain

Today 27 Apr Cascade County below 5000ft

Not as cool. Partly sunny. Slight chance of snow Showers in the Morning, then slight chance of snow Showers and rain Showers in the afternoon. Highs in the upper 40s. East Winds up to 5 Mph. Chance of precipitation 20 percent.

Tonight 27 Apr Cascade County below 5000ft

Partly cloudy. A 20 percent chance of rain Showers and snow Showers in the evening. Lows in the upper 20s. Southeast Winds up to 5 Mph shifting to the southwest 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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