Duluth International Airport Weather Forecast

    • 60
    • 70

    Rain Showers Likely

    • 58
    • 81

    Partly Sunny

    • 59
    • 81

    Mostly Cloudy

    • 56
    • 77

    Partly Sunny

    • 55
    • 74

    Slight Chance Thunderstorms

    • 56
    • 75

    Slight Chance Rain Showers

Today 30 Aug Carlton/South St. Louis

Mostly cloudy. A chance of Showers, mainly this morning. Highs in the mid 70s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

Tonight 30 Aug Carlton/South St. Louis

Mostly cloudy with a chance of Showers and Thunderstorms. Patchy fog after midnight. Humid with Lows around 60. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Duluth International Airport Temperature Statistics

August Temperature

Duluth International Airport (0 miles)

  • Lowest 24 August, 2026

    46.7 °F

  • Average August

    65.6 °F

  • Highest 17 August, 2026

    81.6 °F

Climate (2021–2026)

Duluth International Airport (0 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    42.1 °F

  • Average High 2021–2026

    51 °F
Get WillyWeather+ to remove ads