Duluth International Airport Weather Forecast

    • 48
    • 78

    Increasing Clouds

    • 42
    • 54

    Rain Showers

    • 39
    • 54

    Mostly Cloudy

    • 38
    • 56

    Partly Sunny

    • 36
    • 55

    Chance Rain Showers

    • 29
    • 50

    Partly Sunny

Today 11 Oct Carlton/South St. Louis

Mostly sunny. Hot with Highs in the upper 70s. Southwest Winds 5 to 10 Mph.

Tonight 11 Oct Carlton/South St. Louis

Mostly cloudy. Cooler with Lows around 50. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northeast 10 to 15 Mph with Gusts up to 30 Mph after midnight.

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Duluth International Airport Temperature Statistics

October Temperature

Duluth International Airport (0 miles)

  • Lowest 5 October, 2026

    35.1 °F

  • Average October

    51.3 °F

  • Highest 6 October, 2026

    73 °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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