Snow began falling across southwestern Connecticut early this morning, and as of 5 a.m., a slick coating of about one-half inch coats the streets, making driving hazardous.

In a "Winter Weather Advisory" for the region that lasts until 1 p.m., the National Weather Service predicts total snow accumulation will be 2 to 3 inches. But snow is expected to mix with freezing rain later this morning, coating the earlier accumulation and compounding the hazard of travel.

As the temperature rises above freezing about midday, the wintry mix is expected to change to all rain.

Today's high temperature should be in the high-30s, and the east wind will be between 8 and 18 mph. Total daytime accumulation of ice is expected to be less than a 0.1 of an inch.

Rain is expected to continue tonight until about 9 p.m., according to the NWS. It will be cloudy, with a low around 33. There will be a north wind between 6 and 13 mph.

There's still a chance of rain in tomorrow's forecast, ending about 2 p.m. Clouds will continue to cover the region with a daytime high temperature about 40 degrees.

Tomorrow night will be cloudy, then gradually becoming clear, with a low around 25. The wind will be northwest wind between 16 and 18 mph.

Thursday is expected to be partly sunny, with a high near 30, the weather service predicts.