Duluth International Airport Weather Forecast

    • 47
    • 70

    Isolated Thunderstorms

    • 46
    • 70

    Partly Sunny

    • 47
    • 68

    Partly Sunny

    • 47
    • 65

    Rain Showers Likely

    • 47
    • 64

    Chance Rain Showers

    • 48
    • 70

    Slight Chance Thunderstorms

    • 50
    • 72

    Slight Chance Thunderstorms

Today 20 Jun Carlton/South St. Louis

Mostly sunny with isolated Showers and Thunderstorms. Near steady temperature in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 20 Jun Carlton/South St. Louis

Mostly clear. Cold with Lows in the mid 40s. North Winds around 5 Mph.

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Duluth International Airport Temperature Statistics

June Temperature

Duluth International Airport (0 miles)

  • Lowest 15 June, 2026

    46.7 °F

  • Average June

    61.4 °F

  • Highest 3 June, 2026

    80.7 °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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