Saint Johns Lake Weather Forecast

    • 46
    • 70

    Mostly Sunny

    • 58
    • 79

    Chance Rain Showers

    • 43
    • 71

    Mostly Cloudy

    • 43
    • 65

    Rain Showers Likely

    • 49
    • 66

    Rain Showers Likely

    • 43
    • 65

    Partly Sunny

Today 10 Sep Baraga

Sunny. Highs around 71. Northwest Winds 5 to 10 Mph.

Tonight 10 Sep Baraga

Clear. Lows 44 to 49 inland to around 57 at the shore. Temperature rising into the lower 50s after midnight. South Winds 5 to 10 Mph. Gusts up to 25 Mph after midnight.

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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 6 September, 2026

    48.2 °F

  • Average September

    63.7 °F

  • Highest 1 September, 2026

    89.6 °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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