Weather Scrub story here from Spaceflightnow
Looks like next attempt will be on Wednesday 15th July 2009 @ 18:03 HRS EDT.
If Endeavour does not launch on either Wednesday or Thursday of this week, then launch will be delayed until the next attempt on Sunday 26th July 2009.
Below thunderstorms in the area that lead to Sunday's scrub. Looks like there is a Shelf Cloud structure.
Thuderstorm starting to pass over the KSC over the VAB, Sunday 12th July 2009. Looks like there is a Shelf Cloud structure.
Large clouds again on Monday 13th July 2009. Leading to yesterday's scrub.
Thunderstorm definitely moving in: Monday 13th July 2009. Nice Anvil, blooming nuisance though.
Endeavour on Pad 9A with storm clouds brewing. Monday 13th July 2009.