Baby, it's cold outside

Break out your winter parkas. 

Polar air has arrived, snow is forecast for this weekend, and a significant arctic blast is possible next week, according to the National Weather Service in Sullivan.

High temperatures in the low-to-mid-20s are expected through Saturday, with brisk, westerly winds that are expected to become southerly Saturday night, and there's a 20% chance of snow Thursday, according to the weather service.

Friday night is expected to be the coldest night of the week, with a low temperature of about 12 degrees, according to the weather service.

While it's too early to say how much snow is heading our way this weekend, a couple of National Weather Service computer models suggest 5 to 6 inches of the white stuff could fall Saturday night and Sunday, temporarily bringing slightly warmer air with it.

After the snow moves out, temperatures are expected to fall through the middle of next week, with high temperatures between 12 and 20 degrees, according to the weather service.