School Grove Lake Weather Forecast

    • -4
    • 20

    Snow

    • -1
    • 6

    Chance Snow

    • 18
    • 28

    Mostly Cloudy

    • 16
    • 38

    Chance Rain

    • 7
    • 22

    Mostly Cloudy

    • 2
    • 17

    Slight Chance Snow

Today 6 Dec Lyon

Cloudy. A chance of snow in the Morning, then snow in the afternoon. Snow may be heavy at Times in the afternoon. Snow accumulation of 3 to 5 Inches. Much cooler with Highs around 18. East Winds 5 to 10 Mph. Chance of snow 90 percent.

Tonight 6 Dec Lyon

Mostly cloudy. Snow likely in the evening. Total snow accumulation of 4 to 6 Inches possible. Much Colder with Lows around 6 below. North Winds 5 to 10 Mph. Chance of snow 70 percent. Wind chill Values as low as 18 below after midnight.

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School Grove Lake Temperature Statistics

December Temperature

Marshall, Southwest Minnesota Regional Airport - Marshall/Ryan Field (11.8 miles)

  • Lowest 3 December, 2025

    -8 °F

  • Average December

    13.1 °F

  • Highest 2 December, 2025

    33.1 °F

Climate (2020–Present)

Marshall, Southwest Minnesota Regional Airport - Marshall/Ryan Field (11.8 miles)

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  • Average Low 2020–2025

    37.2 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.8 °F
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