Gunflint Lake Weather Forecast

    • 57
    • 83

    Mostly Sunny

    • 52
    • 76

    Partly Sunny

    • 49
    • 67

    Mostly Cloudy

    • 49
    • 64

    Partly Sunny

    • 53
    • 65

    Chance Rain Showers

    • 53
    • 68

    Slight Chance Rain Showers

Today 16 Sep Northern Cook/Northern Lake

Patchy fog this morning. Sunny, hot with Highs in the lower 80s. Southwest Winds 5 to 10 Mph.

Tonight 16 Sep Northern Cook/Northern Lake

Mostly clear in the Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Humid with Lows in the upper 50s. West Winds around 5 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Gunflint Lake Temperature Statistics

September Temperature

Grand Marais/Cook County Airport (23 miles)

  • Lowest 8 September, 2025

    35.6 °F

  • Average September

    52.1 °F

  • Highest 1 September, 2025

    75.2 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (23 miles)

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

  • Average Low 2020–2025

    28.7 °F

  • Average 2020–2025

    38.1 °F

  • Average High 2020–2025

    46.7 °F
Get WillyWeather+ to remove ads