This Thursday, Friday, and Saturday Houston is going to have a 50 to 60 percent chance for rain. I'm not sure why though maybe a low pressure systems is coming. Maybe from the gulf. Also the temperatures are going to be cooler. So, it might be from a cold front. Either way i'm glad. Houston really needs the rain. We've only had .08 inches of rain this August in my area. That's way below normal and were already in a extreme drought. Plus it's been over a 100 this week. Hopefully things will turn around in September. I'm really looking forward to the rain and cooler temperatures.