Saint Johns Lake Weather Forecast

    • 49
    • 69

    Becoming Sunny

    • 57
    • 77

    Mostly Sunny

    • 59
    • 80

    Partly Sunny

    • 55
    • 82

    Chance Thunderstorms

    • 56
    • 81

    Chance Thunderstorms

    • 53
    • 81

    Chance Rain Showers

    • 50
    • 75

    Mostly Sunny

Today 22 Jul Baraga

Sunny. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 22 Jul Baraga

Clear. Lows in the lower 50s. Light west Winds, becoming southwest 5 to 10 Mph after midnight.

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  • Temperature Real-Time

Saint Johns Lake Temperature Statistics

July Temperature

Marquette, Sawyer International Airport (34.8 miles)

  • Lowest 6 July, 2026

    48.2 °F

  • Average July

    67.8 °F

  • Highest 13 July, 2026

    98.6 °F

Climate (2021–2026)

Marquette, Sawyer International Airport (34.8 miles)

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  • Average Low 2021–2026

    33.1 °F

  • Average 2021–2026

    40.9 °F

  • Average High 2021–2026

    51.1 °F
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