Decker Lake Weather Forecast

    • 21
    • 27

    Mostly Cloudy

    • 28
    • 34

    Partly Sunny

    • 32
    • 44

    Mostly Cloudy

    • 23
    • 40

    Mostly Cloudy

    • 25
    • 36

    Chance Snow

    • 26
    • 39

    Chance Snow

Today 7 Feb Le Sueur

Partly sunny. Highs in the upper 20s. Southeast Winds 5 to 15 Mph.

Tonight 7 Feb Le Sueur

Not as cold. Mostly cloudy. Near steady temperature in the mid 20s. Southeast Winds 5 to 15 Mph.

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Decker Lake Temperature Statistics

February Temperature

Mankato, Mankato Regional Airport (10.6 miles)

  • Lowest 3 February, 2026

    1 °F

  • Average February

    20 °F

  • Highest 5 February, 2026

    39 °F

Climate (2021–Present)

Mankato, Mankato Regional Airport (10.6 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    56.9 °F
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