Here are some of the weather sites on the Internet I am watching to plan your flight.
Here are some of the things I am looking for:
Light winds (8 or less) for 3 hours before to 3 hours after the flight time.
No fog or clouds below 5,000 feet
Visibility greater than 5 miles.
No rain or storms within 75 to 100 miles.
These are just some of the factors and as always, my decision is always final.
Weather Underground (click hourly under the day of the week)
http://www.blastvalve.com/weather/ok/
Tomorrow morning http://www.blastvalve.com/weather/weather.pl?icao1=KOKC&icao2=KPWA&icao3=KGOK&fb1=KOKC&fb2=KGAG&fb3=KTUL&When=TM&Submit=Get+BalloonCast
http://www.weathermeister.com/free/index.jsp