Saint Johns Lake Weather Forecast

    • 34
    • 58

    Mostly Sunny

    • 41
    • 63

    Partly Sunny

    • 42
    • 61

    Rain Showers Likely

    • 44
    • 67

    Slight Chance Thunderstorms

    • 49
    • 77

    Slight Chance Thunderstorms

    • 51
    • 81

    Partly Sunny

Today 21 May Baraga

Widespread frost in the morning. Sunny. Highs in the upper 50s. Light southeast Winds, becoming south 5 to 10 Mph in the afternoon.

Tonight 21 May Baraga

Clear. Areas of frost after midnight. Lows around 37. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Johns Lake Temperature Statistics

May Temperature

Marquette, Sawyer International Airport (34.8 miles)

  • Lowest 2 May, 2026

    19.4 °F

  • Average May

    42.1 °F

  • Highest 15 May, 2026

    78.8 °F

Climate (2021–Present)

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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