Duluth International Airport Weather Forecast

    • 36
    • 60

    Becoming Sunny

    • 46
    • 58

    Partly Sunny

    • 47
    • 71

    Mostly Sunny

    • 43
    • 64

    Partly Sunny

    • 41
    • 62

    Partly Sunny

    • 44
    • 59

    Partly Sunny

Today 4 Oct Carlton/South St. Louis

Sunny. Near steady temperature around 60. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 4 Oct Carlton/South St. Louis

Mostly clear. Patchy frost after midnight. Lows in the mid 30s. Northwest Winds 5 to 10 Mph.

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Duluth International Airport Temperature Statistics

October Temperature

Duluth International Airport (0 miles)

  • Lowest 2 October, 2026

    37 °F

  • Average October

    50.7 °F

  • Highest 1 October, 2026

    63 °F

Climate (2021–2026)

Duluth International Airport (0 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    42.1 °F

  • Average High 2021–2026

    51 °F
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