Decker Lake Weather Forecast

    • 8
    • 17

    Increasing Clouds

    • 0
    • 15

    Partly Sunny

    • 13
    • 18

    Partly Sunny

    • 20
    • 36

    Chance Snow

    • 13
    • 32

    Slight Chance Snow

    • 26
    • 37

    Partly Sunny

Today 21 Feb Le Sueur

Increasing Clouds. Highs around 17. Northwest Winds 10 to 15 Mph.

Tonight 21 Feb Le Sueur

Mostly cloudy. Lows around 8. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Decker Lake Temperature Statistics

February Temperature

Mankato, Mankato Regional Airport (10.6 miles)

  • Lowest 3 February, 2026

    1 °F

  • Average February

    30.9 °F

  • Highest 14 February, 2026

    55.9 °F

Climate (2021–Present)

Mankato, Mankato Regional Airport (10.6 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.3 °F
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