Streamwood Weather Forecast

    • 56
    • 62

    Slight Chance Rain Showers

    • 53
    • 66

    Mostly Cloudy

    • 53
    • 67

    Mostly Cloudy

    • 51
    • 67

    Partly Sunny

    • 51
    • 65

    Mostly Cloudy

    • 54
    • 68

    Mostly Cloudy

    • 56
    • 72

    Partly Sunny

Today 22 Sep Northern Cook

Mostly cloudy. A chance of Showers in the afternoon. Highs in the lower 70s. Chance of precipitation 30 percent.

Tonight 22 Sep Northern Cook

Cloudy. Near steady temperature in the upper 50s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Streamwood Temperature Statistics

September Temperature

Chicago / West Chicago, Dupage Airport (9.3 miles)

  • Lowest 14 September, 2026

    46.7 °F

  • Average September

    72.2 °F

  • Highest 1 September, 2026

    93 °F

Climate (2021–2026)

Chicago / West Chicago, Dupage Airport (9.3 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    61.6 °F
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