Duluth International Airport Weather Forecast

    • 26
    • 43

    Partly Sunny

    • 29
    • 51

    Chance Rain Showers

    • 38
    • 60

    Chance Rain Showers

    • 32
    • 55

    Partly Sunny

    • 32
    • 50

    Partly Sunny

    • 37
    • 57

    Partly Sunny

Today 6 May Carlton/South St. Louis

Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the lower 40s. West Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 6 May Carlton/South St. Louis

Mostly cloudy with a slight chance of rain Showers in the Evening, then partly cloudy after midnight. Cold with Lows in the mid 20s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

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Duluth International Airport Temperature Statistics

May Temperature

Duluth International Airport (0 miles)

  • Lowest 1 May, 2026

    23.6 °F

  • Average May

    45.4 °F

  • Highest 3 May, 2026

    65.6 °F

Climate (2021–Present)

Duluth International Airport (0 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    42.3 °F

  • Average High 2021–2026

    51.1 °F
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