Blustery winds sweeping across southwestern Connecticut this morning have prompted the National Weather Service to issue a wind advisory for the region, as temperatures tumble.

The northwest wind will clock in from 20 to 30 mph, with gusts as high 45 to 50 mph, according to the wind advisory, which remains in effect until early afternoon.

Meanwhile, even though skies will be mostly sunny today, temperatures this morning in the low-40s are expected to fall to about 30 degrees by 5 p.m., the NWS says.

Tonight should be mostly clear, with a low temperature around 17 degrees. The north wind will calm to between 5 and 13 mph.

Tomorrow will be increasingly cloudy, with a daytime high temperature near 35 degrees. Snow showers likely mostly tomorrow night, mainly between 7 p.m. and midnight, the NWS says. Skies will be mostly cloudy, with a low temperature in the mid-20s.

Friday is expected to be mostly sunny, with a high in the mid-30s. A slight chance of snow showers is possible overnight, under cloudy skies and a temperature in the mid-20s.

On Saturday, the weather service predicts, there is a chance of snow showers before noon, then a chance of rain and snow showers later and temperatures rising to the upper-30s.