Decker Lake Weather Forecast

    • 0
    • 9

    Snow Likely

    • -5
    • 18

    Snow Likely

    • -4
    • 6

    Cold

    • 10
    • 19

    Chance Snow

    • 1
    • 17

    Mostly Cloudy

    • -1
    • 14

    Mostly Cloudy

Today 17 Jan Le Sueur

Much Colder. Mostly cloudy. Chance of snow early in the Morning, then slight chance of snow late in the morning. Highs around 9. Northwest Winds 15 to 20 Mph. Chance of snow 40 percent.

Tonight 17 Jan Le Sueur

Mostly cloudy. A 30 percent chance of snow after midnight. Lows near zero. Northwest Winds 5 to 15 Mph shifting to the southwest 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Decker Lake Temperature Statistics

January Temperature

Mankato, Mankato Regional Airport (10.6 miles)

  • Lowest 1 January, 2026

    3.9 °F

  • Average January

    25.8 °F

  • Highest 13 January, 2026

    44.1 °F

Climate (2021–Present)

Mankato, Mankato Regional Airport (10.6 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57 °F
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