Lewiston Weather Forecast

    • 35
    • 57

    Mostly Cloudy

    • 37
    • 60

    Partly Sunny

    • 38
    • 64

    Mostly Sunny

    • 38
    • 67

    Mostly Sunny

    • 37
    • 68

    Mostly Sunny

    • 40
    • 70

    Partly Sunny

    • 43
    • 69

    Partly Sunny

Today 21 Sep Montmorency

Partly sunny. Highs in the lower 70s.

Tonight 21 Sep Montmorency

Partly cloudy. Lows in the upper 30s. Light Winds.

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Lewiston Temperature Statistics

September Temperature

Gaylord Regional Airport (20.5 miles)

  • Lowest 16 September, 2026

    45 °F

  • Average September

    63.3 °F

  • Highest 1 September, 2026

    86.6 °F

Climate (2021–2026)

Gaylord Regional Airport (20.5 miles)

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    46.6 °F

  • Average High 2021–2026

    55.4 °F
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