Bobbirob
If you ride through any part of Oklahoma or Texas in August, expect temperatures of 100 degress F. or higher. Yes lots of water is a vital necessity.
Winds are out of the south throgh that area but winds out of the west are common too. I am talking about head winds of 15 to 25 mph with constant gusts of up 45 mph. Expect no more thanthan 25 to 45 miles in a day if you encounter headwindsk as they are difficult to ride in. You will change gears just like riding up a steep hill hill.
You may also encounter torrential rainfall that will stop your ride. You can also expect hail of up to softball size. You can also encounter supercell thunder storms with heavy rqin large hail and even tornados not to mention winds of 100+ mph wind speed not gusts.
Most of these storms will last from 10 to 60 minutes, most in the 10 to 20 minute range.
You will most likely encounter just high heat but storms ar common in August.
I am not trying to scare you just wanting you to be prepared. I want yout to post yor experiences on your trip for all of us to enjoy.
I have lived in Oklahoma for 16 years and previous to that I lived in Los Angeles.
There is the weather web site to get you familiar with weather in OK. and TX.
www.srh.noaa.gov/oun.
This is the National Weather Forcast office in Norman OK. It provides weather forcasts and alerts. The TV and Radio stations use it to. You can also get online and look around to find out about weather anywhere in th U.S.
I was a disater specialist with the Red Cross for 22 years and I still chase storms when I can. This is my go to site for weather forcasts.
I hope this information is helpful. If you have any other questions feel free to ask.