Buffalo Grove Weather Forecast

    • 61
    • 74

    Becoming Sunny

    • 66
    • 80

    Partly Sunny

    • 57
    • 82

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

    • 52
    • 70

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

Today 21 Aug Lake

Decreasing cloudiness. Patchy fog through mid morning. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 21 Aug Lake

Mostly clear. Lows in the lower 60s. Northeast Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Buffalo Grove Temperature Statistics

August Temperature

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

  • Lowest 2 August, 2025

    58.6 °F

  • Average August

    77.8 °F

  • Highest 9 August, 2025

    96.7 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    61.5 °F
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