Augusta Weather Forecast

    • 50
    • 79

    Increasing Clouds

    • 48
    • 79

    Partly Sunny

    • 53
    • 82

    Mostly Sunny

    • 44
    • 72

    Partly Sunny

    • 45
    • 71

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

Today 18 Sep Southern High Plains

Sunny. Highs 75 to 80. West Winds up to 5 Mph shifting to the east in the afternoon.

Tonight 18 Sep Southern High Plains

Mostly clear. Lows 45 to 50. East Winds up to 5 Mph shifting to the west after midnight.

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Augusta Temperature Statistics

September Temperature

Great Falls, Great Falls International Airport (46.6 miles)

  • Lowest 5 September, 2025

    39.9 °F

  • Average September

    64.6 °F

  • Highest 1 September, 2025

    90 °F

Climate (2020–Present)

Great Falls, Great Falls International Airport (46.6 miles)

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  • Average Low 2020–2025

    34 °F

  • Average 2020–2025

    46.4 °F

  • Average High 2020–2025

    58.3 °F
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