Lake Jefferson Weather Forecast

    • 10
    • 19

    Increasing Clouds

    • 27
    • 33

    Snow

    • 2
    • 30

    Snow

    • -2
    • 8

    Cold

    • 3
    • 18

    Slight Chance Snow

    • -3
    • 11

    Partly Sunny

Today 14 Jan Le Sueur

Much Colder. Sunny. Highs around 19. North Winds 10 to 20 Mph.

Tonight 14 Jan Le Sueur

Increasing Clouds. Lows around 10. Northwest Winds up to 10 Mph shifting to the west after midnight.

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  • 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

    24.7 °F

  • Highest 7 January, 2026

    41 °F

Climate (2021–Present)

Mankato, Mankato Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57 °F
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