Arnold Weather Forecast

    • 22
    • 40

    Mostly Sunny

    • 28
    • 43

    Mostly Sunny

    • 35
    • 46

    Partly Sunny

    • 39
    • 50

    Mostly Cloudy

    • 40
    • 51

    Mostly Cloudy

    • 35
    • 50

    Chance Rain

Today 14 Nov Carlton/South St. Louis

Sunny. Highs in the lower 40s. Light and variable Winds, becoming south around 5 Mph this afternoon.

Tonight 14 Nov Carlton/South St. Louis

Partly cloudy. Lows around 20. Light and variable Winds.

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Arnold Temperature Statistics

November Temperature

Duluth International Airport (5 miles)

  • Lowest 6 November, 2026

    23.6 °F

  • Average November

    44.3 °F

  • Highest 1 November, 2026

    62.7 °F

Climate (2021–2026)

Duluth International Airport (5 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    42.2 °F

  • Average High 2021–2026

    51.1 °F
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