Lewistown Weather Forecast

    • 55
    • 88

    Areas Smoke

    • 56
    • 89

    Areas Smoke

    • 54
    • 84

    Mostly Sunny

    • 53
    • 84

    Mostly Sunny

    • 52
    • 83

    Mostly Sunny

    • 50
    • 78

    Chance Rain Showers

Today 7 Aug Fergus County below 4500ft

Sunny. Patchy smoke through the day. Highs 85 to 90. Southeast Winds up to 10 Mph shifting to the north in the afternoon.

Tonight 7 Aug Fergus County below 4500ft

Mostly clear. Patchy smoke through the night. Lows 55 to 60. Northeast Winds up to 10 Mph shifting to the south after midnight.

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Lewistown Temperature Statistics

August Temperature

Lewistown, Lewistown Municipal Airport (1.2 miles)

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  • Average August

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Climate (2021–2026)

Lewistown, Lewistown Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    32.4 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    56.7 °F
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