Saint Johns Lake Weather Forecast

    • 40
    • 65

    Areas Fog

    • 47
    • 67

    Partly Sunny

    • 48
    • 69

    Mostly Cloudy

    • 34
    • 58

    Slight Chance Rain Showers

    • 27
    • 46

    Slight Chance Rain Showers

    • 29
    • 47

    Partly Sunny

Today 22 Oct Baraga

Partly cloudy in the Morning, then clearing. Patchy fog in the morning. Highs in the mid 60s. Light east Winds, becoming southeast in the afternoon.

Tonight 22 Oct Baraga

Mostly clear. Lows around 36 inland to around 45 at the shore. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Johns Lake Temperature Statistics

October Temperature

Marquette, Sawyer International Airport (34.8 miles)

  • Lowest 3 October, 2026

    30.2 °F

  • Average October

    49.2 °F

  • Highest 11 October, 2026

    80.6 °F

Climate (2021–2026)

Marquette, Sawyer International Airport (34.8 miles)

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  • Average Low 2021–2026

    33 °F

  • Average 2021–2026

    40.8 °F

  • Average High 2021–2026

    51 °F
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