Lannon Lake Weather Forecast

    • 62
    • 76

    Increasing Clouds

    • 60
    • 87

    Mostly Sunny

    • 46
    • 77

    Mostly Cloudy

    • 41
    • 61

    Chance Rain Showers

    • 41
    • 60

    Chance Rain Showers

    • 45
    • 62

    Rain Showers Likely

Today 9 Oct Big Stone

Mostly sunny. Warmer with Highs in the upper 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Oct Big Stone

Mostly clear in the Evening, then becoming partly cloudy. Not as cool with Lows in the lower 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

October Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 2 October, 2026

    33.8 °F

  • Average October

    56.9 °F

  • Highest 6 October, 2026

    82.4 °F

Climate (2021–2026)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    34.8 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    54.4 °F
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