A shortwave trough (upper level disturbance) is moving into the northeast, causing increasing clouds from late afternoon into evening. That will help keep temperatures from falling quickly after sunset. Problem is they only get into the low 50s for highs today, so game temps should be in the upper 40s. Wind should be very light, from the S (right to left on the field) at only 2-4 mph, probably totally irrelevant to game play. There is an increasing chance of rain with time, but nothing is expected to reach NYC until well after the game is over (2,3,4 in the morning).
If the Phils stay alive for Thursday - that upper level disturbance is going to create a surface low of the coast that should intensify rapidly. Its close enough to the coast that rain is likely all day, but far enough off that it should be more of a steady drizzle/light showers than steady pounding rain. Combine those showers with temperatures in the mid-40s AND a 20-25 mph win from the northwest (out to right field, the famous “wind tunnel”), playing conditions will be totally miserable. I don’t think the rain by itself would be enough to call the game, but I would hope that the combination would. If they do play in that weather, look for New York hospitals to be flooded with upper respiratory cases by Sunday-Monday. Those of you that don’t live along the east coast don’t appreciate the how pernicious these cold damp events feel, the way the humidity helps the cold penetrate into you and take your immune system apart like a sand castle at high tide. I’d rather be out in 20 degree snow than this.
Assuming they do the right thing and delay to Friday - Clear weather, but a little bit colder still. Game time temps in the 40-43 range, and the wind will still be noticeable at 10-15, still blowing out to right, but that’s roughly half of what Thursday night’s wind is liable to be. That will produce wind chills in the 30-35 range, but it will still be better than Thursday by a mile.