Decker Lake Weather Forecast

    • 50
    • 72

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 59
    • 73

    Mostly Cloudy

    • 50
    • 73

    Chance Rain Showers

    • 43
    • 58

    Slight Chance Rain Showers

    • 39
    • 53

    Partly Sunny

Today 21 Oct Le Sueur

Sunny. Highs in the lower 70s. South Winds up to 5 Mph.

Tonight 21 Oct Le Sueur

Clear. Lows in the upper 40s. Southeast Winds up to 5 Mph.

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  • Temperature Real-Time

Decker Lake Temperature Statistics

October Temperature

Mankato, Mankato Regional Airport (10.6 miles)

  • Lowest 17 October, 2026

    32 °F

  • Average October

    58.6 °F

  • Highest 11 October, 2026

    91 °F

Climate (2021–2026)

Mankato, Mankato Regional Airport (10.6 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57 °F
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