Saint Johns Lake Weather Forecast

    • 52
    • 81

    Increasing Clouds

    • 46
    • 66

    Mostly Cloudy

    • 49
    • 66

    Partly Sunny

    • 54
    • 68

    Chance Rain Showers

    • 56
    • 72

    Chance Rain Showers

    • 51
    • 71

    Chance Rain Showers

Today 17 Sep Baraga

Patchy fog this morning. Mostly sunny. Highs around 80. Temperature falling into the lower 70s this afternoon. West Winds 5 to 10 Mph, becoming north this afternoon.

Tonight 17 Sep Baraga

Patchy fog after midnight. Mostly clear in the Evening, then becoming mostly cloudy. Lows around 53. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Johns Lake Temperature Statistics

September Temperature

Marquette, Sawyer International Airport (34.8 miles)

  • Lowest 4 September, 2025

    37.4 °F

  • Average September

    55.1 °F

  • Highest 1 September, 2025

    77 °F

Climate (2020–Present)

Marquette, Sawyer International Airport (34.8 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    40.9 °F

  • Average High 2020–2025

    51.1 °F
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