Today's Weather Forecast - Chicago
Today's weather in Chicago. high 23°C (73°F), low 19°C (66°F). Overcast.
Today’s Hourly Weather Outlook
- Wind speed
- 13 km/h
- Rain probability
- 0%
- Wind speed
- 14 km/h
- Rain probability
- 0%
- Wind speed
- 9 km/h
- Rain probability
- 0%
- Wind speed
- 10 km/h
- Rain probability
- 0%
24-Hour Rain & Temperature Forecast
Sunrise & Sunset
Air Quality Index & Health Advice
Air Quality Index
- Air quality level
- Good
- Dominant pollutant
- Dominant: PM2.5
- Monitoring station
- Chi_sp, Illinois, USA
- PM2.5
- 13μg/m³
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Chicago is forecast to reach a high of 23°C today, with an overnight low around 19°C. That's 1° above the long-term average high of 22°C for this time of year. It continues a recent pattern — 12 of the last 20 days with published data have run warmer than normal. Expect little chance of rain (0% probability) and a gentle breeze averaging 14 km/h. Air quality is currently Moderate (AQI 55), driven mainly by PM2.5 at 12 μg/m³.
Today vs Normal
The long-term average high for today is 22°C.
12 of the last 20 days with published data ran above normal.
It continues that pattern - today's forecast is also running above normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.