Lake Jefferson Weather Forecast

    • 50
    • 67

    Increasing Clouds

    • 45
    • 67

    Mostly Sunny

    • 46
    • 68

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 55
    • 76

    Partly Sunny

Today 23 Aug Le Sueur

Increasing Clouds. Highs in the upper 60s. Northwest Winds 5 to 15 Mph.

Tonight 23 Aug Le Sueur

Mostly clear. Lows around 50. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Lake Jefferson Temperature Statistics

August Temperature

Mankato, Mankato Regional Airport (7.5 miles)

  • Lowest 1 August, 2025

    57 °F

  • Average August

    72.3 °F

  • Highest 8 August, 2025

    86 °F

Climate (2020–Present)

Mankato, Mankato Regional Airport (7.5 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    56.8 °F
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