Although there is no announced date, Congress is big on tradition and the tradition is that it be on the last Tuesday of January. This would be the 29th of January. This is near the end of the month, which will give Congress as much time as possible to pass the Health bill before the speech, which the President is certainly hoping for. Although the speech can be delayed, the budget must come out the first Monday or Tuesday of February, and the State of the Union traditionally comes before that.

So, if you have to guess for some reason, January 29th is a good bet. However, many people really are betting on one day or another, there's nothing certain about it.

If you choose to watch, may I suggest playing the State of the Union Drinking game, updating it to taste from the 2006 version cited below, and using taster glasses of beer rather than shots. Be sure to stock up on good beer before the last two weeks of the month or as soon as the final date is announced.

According to the Christian Science Monitor no date has been set but it will likely be this month.

--quote--
All this is on top of a normal presidential workload, which includes monitoring lawmakers as House and Senate try to work out the differences between their versions of health reform legislation, and the drafting of an upcoming State of the Union speech. The State of the Union will probably be later this month, though the date has yet to be set.
--/quote--

The State of the Union is an annual address presented by the President of the United States to the United States Congress. The address not only reports on the condition of the nation but also allows the president to outline his legislative agenda and national priorities to Congress. Normally the state of the union address is held the month of january, february when president is new this has been for the past 134 years. The exact date for the president report to congress is not yet openly known to the public.