BBC weather forecast is reporting freezing temperature in Karachi for midnight of Wednesday and Thursday, unbelievable! Yesterday they reported -3oC for Wednesday's night but surprisingly today it is -4oC. So its decreasing more and more :O ... be ready with your warm clothes and even be ready to see snow in Karachi!!! Its Karachi, any thing can happen without any prior notice :D
Following are two snapshots of BBC Weather forecast. First one I took yesterday where last one is for today.