Clark Lake Weather Forecast

    • 41
    • 57

    Partly Sunny

    • 54
    • 69

    Rain Showers

    • 53
    • 66

    Rain Showers

    • 49
    • 68

    Mostly Cloudy

    • 52
    • 70

    Partly Sunny

    • 58
    • 74

    Chance Rain Showers

    • 56
    • 74

    Partly Sunny

Today 7 Sep Ontonagon

Mostly sunny. West Winds 5 to 10 Mph.

Tonight 7 Sep Ontonagon

Mostly clear. Lows in the lower 40s. South Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Clark Lake Temperature Statistics

September Temperature

Ironwood, Gogebic-Iron County Airport (18 miles)

  • Lowest 4 September, 2025

    41 °F

  • Average September

    53 °F

  • Highest 1 September, 2025

    75.9 °F

Climate (2020–Present)

Ironwood, Gogebic-Iron County Airport (18 miles)

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

  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    42.5 °F

  • Average High 2020–2025

    51.3 °F
Get WillyWeather+ to remove ads