Duluth International Airport Weather Forecast

    • 64
    • 90

    Rain Showers Likely

    • 58
    • 77

    Chance Rain Showers

    • 59
    • 82

    Mostly Sunny

    • 60
    • 83

    Partly Sunny

    • 62
    • 84

    Chance Thunderstorms

    • 61
    • 85

    Chance Rain Showers

Today 26 Jul Carlton/South St. Louis

Partly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Patchy smoke in the afternoon. Hot with Highs in the lower 90s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 26 Jul Carlton/South St. Louis

Mostly cloudy. Patchy fog. Near steady temperature in the mid 60s. South Winds around 5 Mph.

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Duluth International Airport Temperature Statistics

July Temperature

Duluth International Airport (0 miles)

  • Lowest 22 July, 2026

    48.9 °F

  • Average July

    71.5 °F

  • Highest 13 July, 2026

    93.7 °F

Climate (2021–2026)

Duluth International Airport (0 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    42.2 °F

  • Average High 2021–2026

    51 °F
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