Acton Weather Forecast

    • 65
    • 99

    Hot

    • 64
    • 98

    Hot

    • 57
    • 83

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 55
    • 82

    Partly Sunny

    • 56
    • 85

    Partly Sunny

Today 19 Aug Southwestern Yellowstone

Sunny. Highs around 101. Southwest Winds 5 to 10 Mph.

Tonight 19 Aug Southwestern Yellowstone

Mostly clear. Lows in the upper 60s. South Winds 5 to 10 Mph.

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Acton Temperature Statistics

August Temperature

Billings, Billings Logan International Airport (10.6 miles)

  • Lowest 10 August, 2025

    53.7 °F

  • Average August

    73.5 °F

  • Highest 13 August, 2025

    98.7 °F

Climate (2020–Present)

Billings, Billings Logan International Airport (10.6 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.5 °F
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