Ballantyne Lake Weather Forecast

    • 67
    • 88

    Mostly Cloudy

    • 65
    • 85

    Slight Chance Thunderstorms

    • 64
    • 87

    Partly Sunny

    • 61
    • 79

    Rain Showers Likely

    • 57
    • 75

    Chance Rain Showers

    • 53
    • 72

    Chance Rain Showers

Today 14 Sep Blue Earth

Mostly sunny. Highs in the upper 80s. South Winds 5 to 15 Mph.

Tonight 14 Sep Blue Earth

Increasing Clouds. Lows in the upper 60s. Southeast Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ballantyne Lake Temperature Statistics

September Temperature

Mankato, Mankato Regional Airport (3.7 miles)

  • Lowest 4 September, 2025

    41 °F

  • Average September

    59.9 °F

  • Highest 8 September, 2025

    78.1 °F

Climate (2020–Present)

Mankato, Mankato Regional Airport (3.7 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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