Lannon Lake Weather Forecast

    • 50
    • 75

    Rain Showers Likely

    • 54
    • 75

    Partly Sunny

    • 53
    • 73

    Mostly Cloudy

    • 55
    • 75

    Mostly Cloudy

    • 53
    • 73

    Chance Thunderstorms

    • 53
    • 75

    Slight Chance Thunderstorms

Today 19 Jun Big Stone

Partly sunny. A chance of Showers with a slight chance of Thunderstorms in the morning. Highs in the mid 70s. Southwest Winds 10 to 15 Mph, becoming northwest 15 to 20 Mph in the afternoon. Chance of rain 50 percent.

Tonight 19 Jun Big Stone

Partly cloudy. Lows around 50. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

June Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 14 June, 2026

    48.2 °F

  • Average June

    69.8 °F

  • Highest 7 June, 2026

    89.6 °F

Climate (2021–2026)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    54.4 °F
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