Lannon Lake Weather Forecast

    • 65
    • 83

    Partly Sunny

    • 57
    • 84

    Rain Showers

    • 52
    • 73

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 61
    • 79

    Slight Chance Thunderstorms

    • 62
    • 82

    Slight Chance Thunderstorms

Today 2 Aug Big Stone

Partly sunny. Highs in the mid 80s. South Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to southeast 15 to 20 Mph with Gusts up to 30 Mph this afternoon.

Tonight 2 Aug Big Stone

Partly cloudy. Humid with Lows in the mid 60s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

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Lannon Lake Temperature Statistics

August Temperature

Wheaton Municipal Airport (16.8 miles)

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  • Average August

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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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