Google predictions suggest a 90% draw chance which basically means that this match is over at this point. Pakistan were lucky to escape here while England will probably be cursing the weather currently.
If 2 days are lost and 2 more days left and it is impossible to see a result in the match, Pakistan still have a wicket left in their first innings and England need a day to reach that score if the weather allows and then a lead so that Pakistan can bat in the second innings and the match is a gone conclusion. Pakistan have some good bowlers and if there were no interruption who knows what the situation would be.