Around this time of year, it's gonna be hot... and humid... and muggy... and oppressive. They're expecting temperatures in the 90's throughout next week. You can get away with 'business casual' at informal events, but I'd recommend packing at least a dress and maybe a business suit.
For weather in the DFW area, ya can't go wrong with
www.wfaa.com - they have a pretty good weatherman who is quite used to how unpredictable Texas weather can be.
DFW GC'ers -- if you have the time and DolphinChicaDDD isn't too busy, we all gotta get together for drinks and stuff! Gotta show her some down-home Texas hospitality we're so famous for!