From Brady Taylor:
A cold front will move through Central Texas around midday, bringing scattered showers and cooler temperatures. Ahead of the cold front, highs will climb into the 70s, but once the front arrives during the afternoon, temperatures will steadily drop into the 60s and lower 70s as northwesterly winds increase to between 10 and 20mph.
Rain will be scattered and there may be some rumbles of thunder too, but strong thunderstorms are not likely. The rain will slowly push south and east and should begin to dissipate and exit the area after 10pm.
Temperatures behind the front will drop into the middle and upper 40s by Thursday morning. Although we'll start the day a bit cool, readings will rebound during the afternoon into the middle 70s under mostly clear to partly cloudy skies.