Amh1985

New to posting to this board but have frequently checked here for winter storm information. Posting for the first time because I am looking for advice: I am out of the area now but scheduled to return on a flight that is supposed to land at LGA at 10:15pm Sunday night. I may have the opportunity to get on an earlier flight landing around 4:30pm, also at LGA. What will conditions be like at 4:30 vs 10pm? Is it worth the hassle to change flights?