Symptoms of an allergic reaction which may require medical intervention include: 1  Swelling or angioedema of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs. 2  Hoarseness. 3  Difficulty breathing or swallowing. 4  Rash or hives. 5  Abdominal pain.
Averages for Chicago in December. December in Chicago is winter and this means an extremely cold climate that can be subject to icy winds and snow. Make sure you layer up your clothes with a warm coat over the top, as winter in Chicago can be brutal. If you're not one for cold weather, Chicago is a city to be avoided in January! Read more.
The warmest day over the next 25 days in Chicago is forecast to be 20th October at 23Â°C (73Â°F) and the warmest night on 19th October at 16Â°C (61Â°F). The average temperature over the next 25 days is forecast to be 15Â°C (59Â°F) and there will be 11 days of sunshine.