Saint Johns Lake Weather Forecast

    • 53
    • 75

    Areas Fog

    • 54
    • 79

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 55
    • 80

    Chance Rain Showers

    • 50
    • 70

    Chance Thunderstorms

    • 45
    • 64

    Chance Rain Showers

    • 45
    • 63

    Partly Sunny

Today 14 Sep Baraga

Sunny. East Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 14 Sep Baraga

Clear. Areas of fog. Lows in the mid 50s. Light southeast Winds, becoming south after midnight.

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  • 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

    53.3 °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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