Duluth International Airport Weather Forecast

    • 38
    • 63

    Partly Sunny

    • 38
    • 56

    Mostly Sunny

    • 42
    • 58

    Mostly Sunny

    • 44
    • 64

    Partly Sunny

    • 43
    • 64

    Partly Sunny

    • 50
    • 68

    Chance Rain Showers

Today 18 Oct Carlton/South St. Louis

Mostly sunny. Highs in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 18 Oct Carlton/South St. Louis

Partly cloudy in the Evening, then clearing. Lows in the upper 30s. West Winds around 5 Mph, becoming north 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

    51.6 °F

  • Highest 10 October, 2026

    80.1 °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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