The watch is in effect from 9 a.m. to 8 p.m. on Thursday.
Skies will clear later on Wednesday with the relative humidity plummeting and winds picking up.
Thursday will be sunny with a high of 61 with winds blowing from the northwest at 20 to 25 mph. The wind could gust up to 40 mph at times.
The entire tri-state area will be affected by the Fire Watch, with the National Weather Service warning that fire could spread rapidly if ignition occurs.
A Red Flag Warning - the next highest fire warning - has been issued south of the tri-state area in the greater Philadelphia and Washington D.C. areas, which could expand to the tri-state area if conditions become even drier than expected.
Showers are possible later on Friday and on Saturday, which will likely end the watch.
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