As promised, it looks like a great day to get on the road to Gramma's house. Plenty of sunshine, dry roads and temperatures headed toward 70 degrees today. That won't help clear the traffic lanes, but at least it will look nice outside as you creep along at 10 mph in the fast lane.

But Turkey Day itself looks to be more interesting. Forecasters say the high-pressure system and this dry air begins to move off the Carolina coast. It's the clockwise circulation around that high that is drawing all this mild Southern air into the region. We're something like 15 degrees above normal for this time of year.

To replace this nice weather there's a cold front edging in from the west. It will begin to kick up some showers ahead of it. We can expect them to reach the I-95 corridor Thursday morning, and the front itself will shove through in the late-morning to early afternoon. You'll know it by the gusty winds and falling temperatures. If you raked the yard to impress your in-laws, your work may be erased by the time they actually arrive for dinner.

Behind the front come much colder temperatures and drier air. Look for temperatures to drop to the mid-30s Thursday night. Highs on Friday won't get out of the 40s, despite plenty of sunshine. Friday night will be best for stargazing, if forecasters get this right. Take the opportunity to look for Comet Holmes high in the northeastern sky. (You'll need binoculars; it's getting dimmer as it expands.) But it will be cold, with overnight lows in the upper 20s. 

Rain chances increase again for Sunday morning as a storm developing over Texas heads this way. It could begin as snow in spots, but mostly they're talking about rising temperatures and widespread rain by early Monday morning. That we could use.