Lewistown Weather Forecast

    • 54
    • 83

    Becoming Sunny

    • 57
    • 87

    Partly Sunny

    • 48
    • 78

    Chance Thunderstorms

    • 52
    • 78

    Partly Sunny

    • 51
    • 83

    Partly Sunny

    • 47
    • 77

    Mostly Sunny

Today 20 Aug Fergus

Sunny in the morning then becoming partly cloudy. Highs 80 to 85. East Winds 5 to 15 Mph.

Tonight 20 Aug Fergus

Clear. Lows in the mid 50s. Southeast Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewistown Temperature Statistics

August Temperature

Lewistown, Lewistown Municipal Airport (1.2 miles)

  • Lowest 18 August, 2019

    44.1 °F

  • Average August

    65.3 °F

  • Highest 2 August, 2019

    91.9 °F

Climate (2010–Present)

Lewistown, Lewistown Municipal Airport (1.2 miles)

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  • Average Low 2010–Present

    32.6 °F

  • Average 2010–Present

    44.1 °F

  • Average High 2010–Present

    55.1 °F
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