St John Weather Forecast

    • 13
    • 50

    Rain Showers

    • 21
    • 24

    Partly Sunny

    • 18
    • 41

    Mostly Cloudy

    • 20
    • 28

    Partly Sunny

    • 34
    • 39

    Mostly Cloudy

    • 33
    • 47

    Mostly Cloudy

    • 42
    • 50

    Mostly Cloudy

Today 18 Dec Lake

Patchy fog late in the morning. Showers, windy. Highs in the lower 50s. Temperature falling to around 40 in the afternoon. South Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of precipitation near 100 percent.

Tonight 18 Dec Lake

Cloudy. Scattered snow Showers and Flurries. Blustery. Lows around 14. West Winds 20 to 25 Mph, becoming 15 to 25 Mph after midnight. Gusts up to 35 Mph. Chance of precipitation 50 percent.

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St John Temperature Statistics

December Temperature

Lansing Municipal Airport (6.8 miles)

  • Lowest 14 December, 2025

    0.1 °F

  • Average December

    21.8 °F

  • Highest 10 December, 2025

    39 °F

Climate (2020–Present)

Lansing Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    60.3 °F
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