Lannon Lake Weather Forecast

    • 63
    • 77

    Mostly Cloudy

    • 66
    • 84

    Rain Showers Likely

    • 72
    • 91

    Chance Rain Showers

    • 69
    • 100

    Slight Chance Thunderstorms

    • 67
    • 93

    Slight Chance Thunderstorms

    • 71
    • 96

    Chance Thunderstorms

Today 26 Jun Big Stone

Partly sunny. Near steady temperature in the mid 70s. Southeast Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 26 Jun Big Stone

Mostly cloudy in the Evening, then becoming partly cloudy. 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

June Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 14 June, 2026

    48.2 °F

  • Average June

    67.7 °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

    44.5 °F

  • Average High 2021–2026

    54.4 °F
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