Today will feature another day of cool weather as an upper level trough drifts overhead. This trough will bring very cool air into the region aloft, which means that we’ll have a stronger-than-usual vertical temperature gradient today. What does that mean in practical terms? Morning sunshine will give way to afternoon cloudiness as cumulus develop in response to daytime heating. Some of these clouds will grow tall enough to produce a brief rain shower. The best chance for a shower will be over northern and eastern parts of the area this afternoon. High temps will remain on the cooler side, ranging from 55 in the mountains to 70 along the coastal plain.