Barrington Weather Forecast
- 72
- 90
Chance Thunderstorms
- 64
- 83
Partly Sunny
- 63
- 79
Partly Sunny
- 65
- 81
Mostly Cloudy
- 71
- 84
Chance Rain Showers
- 68
- 87
Chance Rain Showers
Today 4 Sep Northern Cook
Mostly cloudy early in the afternoon then clearing. A slight chance of Showers and Thunderstorms early in the afternoon. Highs around 90. East Winds around 10 Mph, becoming south in the afternoon. Chance of precipitation 20 percent. Heat index Values up to 100 in the afternoon.
Tonight 4 Sep Northern Cook
Partly cloudy. A slight chance of Showers and Thunderstorms early in the Evening, then a chance of Showers and Thunderstorms in the late evening and early morning. A slight chance of Showers and Thunderstorms late. Patchy fog late. Humid with Lows in the lower 70s. Northwest Winds around 5 Mph. Chance of precipitation 30 percent.
Barrington Temperature Statistics
September Temperature
Chicago / Wheeling, Pal-Waukee Airport (11.8 miles)
Lowest 1 September, 2026
72.6 °FAverage September
85.1 °FHighest 1 September, 2026
95.6 °F
Climate (2021–2026)
Chicago / Wheeling, Pal-Waukee Airport (11.8 miles)
Average Low 2021–2026
43.9 °FAverage 2021–2026
52.8 °FAverage High 2021–2026
61.6 °F