Decker Lake Weather Forecast

    • 47
    • 67

    Decreasing Clouds

    • 53
    • 77

    Mostly Sunny

    • 33
    • 73

    Rain Showers Likely

    • 27
    • 42

    Chance Snow Showers

    • 30
    • 47

    Mostly Sunny

    • 43
    • 60

    Mostly Sunny

Today 15 Apr Le Sueur

Mostly sunny then becoming partly sunny early in the afternoon then becoming mostly sunny. Highs in the upper 60s. North Winds up to 5 Mph shifting to the northeast around 5 Mph in the afternoon.

Tonight 15 Apr Le Sueur

Mostly cloudy in the evening then clearing. Lows in the upper 40s. East Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Decker Lake Temperature Statistics

April Temperature

Mankato, Mankato Regional Airport (10.6 miles)

  • Lowest 7 April, 2026

    21.9 °F

  • Average April

    40.9 °F

  • Highest 12 April, 2026

    80.1 °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

    57.1 °F
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