Great Falls Weather Forecast

    • 48
    • 77

    Mostly Cloudy

    • 53
    • 78

    Partly Sunny

    • 64
    • 81

    Rain Showers

    • 47
    • 74

    Rain Showers

    • 37
    • 64

    Sunny

    • 45
    • 73

    Sunny

Today 13 Mar Chester

Mostly cloudy. Highs in the upper 70s. Southwest Winds around 5 Mph.

Tonight 13 Mar Chester

Partly cloudy this Evening, then clearing. Lows in the upper 40s. South Winds around 5 Mph this Evening, becoming light and variable.

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Great Falls Temperature Statistics

March Temperature

Lancaster County-mc Whirter Field (10.6 miles)

  • Lowest 3 March, 2025

    24.8 °F

  • Average March

    50.4 °F

  • Highest 8 March, 2025

    75.2 °F

Climate (2020–Present)

Lancaster County-mc Whirter Field (10.6 miles)

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  • Average Low 2020–2025

    51.9 °F

  • Average 2020–2025

    62.2 °F

  • Average High 2020–2025

    73.6 °F
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