Great info guys. I use the app Weather Underground on my android phone. You can connect to tons of weather stations in the area that you will be going to and see what the forecast is and what the current conditions are. Give a lot of details which I appreciate most of the time. So far, it's been more accurate than the weather man on Fox 4 and NBC 5. I know it's going to rain before they do and the chances are way more realistic.
However, wind is probably the hardest thing to predict in Texas. There tends to be some leeway in what they say it's going to be and what it actually is. I've had several times that I planned a trip because the wind said 10-15, but when you get out on the water 10-15 turns into 15-20 or 20-25.
Make sure you understand that none of these apps are specifically designed to tell you how choppy water conditions will be on your local waters. Winds are almost always higher on the water due to the fact that there is nothing to stop the wind on water. Little to no resistance on the surface. Unless somebody puts a solar powered weather station right smack in the middle of the water... you're never going to have a 100% accurate forecast or wind speed reading.