Lake Jefferson Weather Forecast

    • 28
    • 38

    Increasing Clouds

    • 25
    • 35

    Rain Likely

    • 21
    • 31

    Chance Snow

    • 10
    • 26

    Chance Snow

    • 18
    • 25

    Partly Sunny

    • 27
    • 37

    Mostly Cloudy

Today 7 Jan Le Sueur

Sunny. Highs in the upper 30s. South Winds 5 to 10 Mph.

Tonight 7 Jan Le Sueur

Partly cloudy. Lows in the upper 20s. South Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Jefferson Temperature Statistics

January Temperature

Mankato, Mankato Regional Airport (7.5 miles)

  • Lowest 1 January, 2026

    3.9 °F

  • Average January

    20.3 °F

  • Highest 5 January, 2026

    34 °F

Climate (2021–Present)

Mankato, Mankato Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57 °F
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