CHICAGO - There are two main issues regarding the upcoming forecast.

Item number one is the risk of frost over the next two nights. Item number two is the risk of rainfall heading through the weekend into next week.

Chicago weather forecast

What we know:

First of all, today will be mostly cloudy, windy and chilly. Temperatures will barely move, and it may be difficult to get past 50° in some areas. Winds will be generally between 15 and 25 mph, adding to the colder feel.

Now let’s talk about the risk of frost. Tonight it will be mostly cloudy to start, but skies will clear. If winds die down, the risk of frost will go up significantly. However, right now it appears as though there will be just enough wind to prevent a widespread frost. A frost advisory is going into effect overnight

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