If you went outside before sunrise early Tuesday morning, you noticed it was pretty warm out for this time of year in Chicagoland. Well, that's as warm as it's going to get Tuesday. The warm early spring air that's been around the last couple days will change over to much colder air,

Near the immediate lakeshore, temperatures will be in the 40s, while inland temperatures will be close to 50 degrees. You can expect temperatures to fall during the second half of the day.