Streamwood Weather Forecast

    • 53
    • 76

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

    • 63
    • 81

    Partly Sunny

    • 63
    • 83

    Chance Thunderstorms

    • 61
    • 81

    Mostly Sunny

    • 62
    • 81

    Partly Sunny

    • 66
    • 80

    Mostly Cloudy

Today 23 Aug Northern Cook

Partly cloudy. Temperatures in the mid 70s. Northwest Winds around 10 Mph.

Tonight 23 Aug Northern Cook

Mostly clear. Lows in the mid 50s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Streamwood Temperature Statistics

August Temperature

Chicago / West Chicago, Dupage Airport (9.3 miles)

  • Lowest 20 August, 2026

    59 °F

  • Average August

    73.6 °F

  • Highest 10 August, 2026

    87.7 °F

Climate (2021–2026)

Chicago / West Chicago, Dupage Airport (9.3 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    61.7 °F
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