Irwin Lake Weather Forecast

    • 54
    • 77

    Mostly Sunny

    • 66
    • 81

    Partly Sunny

    • 57
    • 90

    Rain Showers Likely

    • 50
    • 71

    Slight Chance Thunderstorms

    • 51
    • 75

    Partly Sunny

    • 56
    • 78

    Chance Rain Showers

Today 3 Jul Alger

Mostly sunny. Near steady temperature in the lower 70s. North Winds 5 to 10 Mph.

Tonight 3 Jul Alger

Mostly clear. Lows around 55. Light southeast Winds, becoming south 5 to 10 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Irwin Lake Temperature Statistics

July Temperature

Munising - Munising Lakeshore Observation (13 miles)

  • Lowest 1 July, 2025

    62.1 °F

  • Average July

    67.9 °F

  • Highest 1 July, 2025

    75 °F

Climate (2020–Present)

Munising - Munising Lakeshore Observation (13 miles)

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

  • Average Low 2020–2025

    37 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    52.1 °F
Get WillyWeather+ to remove ads