15-Day Weather Forecast - Chicago
15-day weather forecast for Chicago: temperatures from 14°C (57°F) to 31°C (88°F). Average daily high 24°C (75°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Chicago's 15-day outlook ranges from a low of 14°C to a high of 31°C, with an average daytime high near 24°C. That's 2° above the long-term average high of 22°C for this time of year. It continues a recent pattern — 21 of the last 28 days with published data have run warmer than normal. Air quality is currently good (AQI 31), with no notable outdoor health concerns.
Today vs Normal
The long-term average high for today is 22°C.
21 of the last 28 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 considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Extended Outlook for Chicago
Over the next 15 days, Chicago is forecast to see temperatures ranging from 14°C to 31°C, averaging a daily high of 24°C. The extended outlook indicates occasional showers on 7 days, with 27.4 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.