Early snow flurries have added a treacherous coating to roads across southwestern Connecticut this morning, as the region shudders in the grip of a deep freeze.

The National Weather Service says there also may be more scattered snow showers through early afternoon, and although the skies will gradually clear, the temperature today is expected to rise to a high only in the mid-20s. It will feel even colder because wind-chill readings will be driven downward by a blustery, northwest wind 11 to 21 mph.

Tonight will be partly cloudy, with a low temperature about 10 degrees and a northwest wind 10 to 16 mph.

Tomorrow, scattered snow flurries are possible after 2 p.m., while under partly sunny skies, the high temperature will be about 20 degrees -- wind-chill values will plunge to about zero because of a northwest wind 13 to 15 mph.

More scattered flurries are possible tomorrow night, while the low temperature will be about 10 degrees.

On Thursday, skies will be mostly sunny and the high temperature will be about 20 degrees. There will be a northwest wind 8 to 18 mph, with gusts as high as 30 mph, the NWS says. Nighttime will be mostly clear, with a low temperature about 10 degrees.

Snow is likely Friday, mainly after 4 p.m., as the daytime high temperature registers in the mid-20s. Chance of precipitation is 60 percent. Snow also is likely Friday night, with a low temperature in the upper-teens. Nighttime odds of precipitation are 60 percent.

The outlook for Saturday, according to the weather service, is partly sunny and temperatures in the 20s.