Streamwood Weather Forecast

    • 63
    • 77

    Chance Thunderstorms

    • 63
    • 83

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

    • 63
    • 87

    Partly Sunny

    • 63
    • 86

    Partly Sunny

    • 61
    • 83

    Mostly Cloudy

Today 13 Sep Northern Cook

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

Tonight 13 Sep Northern Cook

Mostly cloudy early in the Evening, then clearing. A slight chance of Showers and Thunderstorms early in the evening. Patchy fog after midnight. Lows in the mid 60s. Southeast Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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Streamwood Temperature Statistics

September Temperature

Chicago / West Chicago, Dupage Airport (9.3 miles)

  • Lowest 7 September, 2025

    44.1 °F

  • Average September

    62 °F

  • Highest 10 September, 2025

    81 °F

Climate (2020–Present)

Chicago / West Chicago, Dupage Airport (9.3 miles)

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  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    61.3 °F
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