Another surge of cool air underway Wednesday morning produces lots of clouds as the contrast between a cold sky and relatively warm ground sets cumulus cloud growth into motion. Some of these clouds will grow heavy enough to drop a few light rain showers or sprinkles from time to time across New England Wednesday afternoon, though most communities will stay dry through most of the day. There's no question the air is plenty chilly, though, with communities like Rutland and Montpelier, Vermont, struggling to get past 50 degrees for an afternoon high! For as cool as Wednesday may be, the chilliest air will arrive Wednesday night and Thursday on a northwest wind. Pushing up against the northern faces of North Country mountains, this wind will be forced up the mountainslopes and create clouds that very well may produce some snow showers in the higher terrain of far Northern New England! Farther south, partly cloudy and cool conditions are expected to lead us into the coolest day of the week on Thursday, with more bubbling clouds to limit how much sun we see. The weather pattern begins to shift by Friday, as winds turn to blow from the south, carrying warmer air toward New England. Aloft, the jet stream starts to shift north, as well, and this also favors deeper warmth pressing toward New England, which is likely to create lots of Friday clouds, and perhaps even a few showers in far Western and Northern New England by late in the day. More substantial rain, however, will wait until a more solid push of warm and moist air from the south, expected to develop from west to east early Saturday, and bring periods of rain, heavy at times. Though a few surges of warmer and more moist air will create a few rounds of rainfall, it's unlikely that we'll see rain non-stop this weekend. The trick, therefore, is timing the breaks in the action, and right now one of those breaks looks like it may come Saturday evening, with just scattered showers rather than steady rain. It's still early, though, and this will become clearer with time. Sunday should bring moring rain, then gradual drying and partial clearing from west to east during the afternoon, with eastern areas seeing the rain ending last.