Wonder Lake Weather Forecast

    • 62
    • 79

    Mostly Sunny

    • 60
    • 82

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 61
    • 87

    Partly Sunny

    • 61
    • 86

    Slight Chance Thunderstorms

    • 60
    • 82

    Chance Thunderstorms

    • 55
    • 75

    Chance Thunderstorms

Today 13 Sep McHenry

Mostly cloudy. Showers and Thunderstorms likely late in the Morning, then a chance of Showers and Thunderstorms in the late morning and afternoon. Highs in the upper 70s. Southeast Winds 5 to 10 Mph. Chance of precipitation 70 percent.

Tonight 13 Sep McHenry

Partly cloudy early in the Evening, then becoming mostly clear. Patchy fog after midnight. Lows in the lower 60s. East Winds 5 to 10 Mph.

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Wonder Lake Temperature Statistics

September Temperature

Burlington Municipal Airport (21.1 miles)

  • Lowest 8 September, 2025

    36.9 °F

  • Average September

    57.3 °F

  • Highest 1 September, 2025

    75.9 °F

Climate (2020–Present)

Burlington Municipal Airport (21.1 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    59.5 °F
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