LATE UPDATE – 7:33 AM – Instability is cited as the reason that the first landing opportunity is being waved off for Kennedy. They will be shooting for a landing opportunity on orbit 197 at one of the two locations (Kennedy or Edwards.)
There is an imaginary 30 mile circle around the landing sites where there cannot be showers, I understand.
Weather at Cape Kennedy is marginal for this morning’s return of the Space Shuttle Atlantis.
MISSION (hahahaha) control is evaluating the weather even as we speak.
The crew of STS-125 is doing their fluid load and re-entry checklist.
They can land at 9:09 CDT at Kennedy, a little before that at Edwards. There will be two more landing opportunities (one in Florida, one in California) after the first one.
Skies are partly cloudy at the Cape, but there are big storms to the ESE by about 50 miles.

Here is a beautiful early morning visible satellite photo:

Here are current conditions at the site:

I suppose they would land on runway 15 at TTS, coming in from the west, which would help them avoid weather.