Lake Jefferson Weather Forecast

    • 65
    • 82

    Chance Rain Showers

    • 65
    • 81

    Chance Rain Showers

    • 60
    • 77

    Chance Rain Showers

    • 61
    • 74

    Rain Showers Likely

    • 60
    • 73

    Chance Thunderstorms

    • 58
    • 73

    Partly Sunny

Today 11 Aug Le Sueur

Partly sunny. Chance of Showers and slight chance of Thunderstorms in the morning. Highs in the lower 80s. Southeast Winds up to 5 Mph. Chance of precipitation 50 percent.

Tonight 11 Aug Le Sueur

Cloudy. Slight chance of Thunderstorms after Midnight, then chance of Thunderstorms early in the morning. Lows in the mid 60s. Southeast Winds up to 5 Mph. Chance of Thunderstorms 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Jefferson Temperature Statistics

August Temperature

Mankato, Mankato Regional Airport (7.5 miles)

  • Lowest 8 August, 2026

    55 °F

  • Average August

    69.1 °F

  • Highest 1 August, 2026

    82 °F

Climate (2021–2026)

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

    57.1 °F
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