Bromley Lake Weather Forecast

    • 52
    • 60

    Rain Showers Likely

    • 53
    • 60

    Rain Showers Likely

    • 49
    • 66

    Mostly Cloudy

    • 54
    • 76

    Partly Sunny

    • 51
    • 73

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

Today 18 Sep McHenry

Cloudy with a 30 percent chance of Showers. Highs around 60. Northeast Winds around 10 Mph.

Tonight 18 Sep McHenry

A slight chance of Thunderstorms. Showers. Lows in the lower 50s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Bromley Lake Temperature Statistics

September Temperature

Harvey Municipal Airport (25.5 miles)

  • Lowest 7 September, 2025

    33.8 °F

  • Average September

    59.9 °F

  • Highest 1 September, 2025

    80.6 °F

Climate (2020–Present)

Harvey Municipal Airport (25.5 miles)

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  • Average Low 2020–2025

    30.1 °F

  • Average 2020–2025

    41.2 °F

  • Average High 2020–2025

    51.9 °F
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