Barrington Weather Forecast

    • 61
    • 71

    Thunderstorms Likely

    • 63
    • 76

    Rain Showers

    • 55
    • 67

    Rain Showers Likely

    • 52
    • 64

    Chance Rain Showers

    • 51
    • 63

    Slight Chance Rain Showers

    • 52
    • 65

    Mostly Cloudy

    • 53
    • 68

    Mostly Cloudy

Today 18 Sep Northern Cook

Partly cloudy. Highs around 70.

Tonight 18 Sep Northern Cook

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers and Thunderstorms likely after midnight. Lows in the lower 60s. East Winds 10 to 15 Mph. Chance of precipitation 70 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 14 September, 2026

    50.6 °F

  • Average September

    73.6 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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