Lake Jefferson Weather Forecast

    • 47
    • 72

    Mostly Sunny

    • 54
    • 79

    Chance Rain Showers

    • 52
    • 84

    Mostly Sunny

    • 53
    • 82

    Mostly Cloudy

    • 57
    • 81

    Rain Showers Likely

    • 49
    • 77

    Chance Rain Showers

Today 13 May Le Sueur

Sunny. Highs in the mid 70s. Northwest Winds 5 to 15 Mph.

Tonight 13 May Le Sueur

Clear. Lows in the upper 40s. Northeast Winds 5 to 10 Mph shifting to the southeast 5 to 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Jefferson Temperature Statistics

May Temperature

Mankato, Mankato Regional Airport (7.5 miles)

  • Lowest 6 May, 2026

    30 °F

  • Average May

    51.3 °F

  • Highest 8 May, 2026

    72 °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

    48.3 °F

  • Average High 2021–2026

    57.2 °F
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