Barrington Weather Forecast

    • 71
    • 87

    Chance Thunderstorms

    • 72
    • 89

    Chance Thunderstorms

    • 65
    • 80

    Slight Chance Thunderstorms

    • 64
    • 80

    Partly Sunny

    • 65
    • 82

    Partly Sunny

    • 70
    • 84

    Chance Rain Showers

Today 3 Sep Northern Cook

Partly cloudy. A slight chance of Showers and Thunderstorms late in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Near steady temperature in the mid 80s. West Winds around 10 Mph, becoming southeast in the afternoon. Chance of precipitation 40 percent. Heat index Values up to 104.

Tonight 3 Sep Northern Cook

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms early in the Evening, then a slight chance of Showers and Thunderstorms late in the evening. A chance of Showers and Thunderstorms after midnight. Humid with Lows in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barrington Temperature Statistics

September Temperature

Chicago / Wheeling, Pal-Waukee Airport (11.8 miles)

  • Lowest 1 September, 2026

    72 °F

  • Average September

    83.3 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (11.8 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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