Temperatures will struggle to reach freezing today, and they'll sink deep into the teens tonight, the coldest readings of the season so far. But help is on the way. Monday's highs could top 60 degrees - 20 degrees above the seasonal norm.

This crazy roller coaster comes to us courtesy of a big, high-pressure system that swept all this arctic air into the Eastern U.S. in the last day or two. Have you seen the low temps in Florida and Louisiana? The barometer here at The Sun has reached 30.70 inches this morning and is still climbing. That's the highest reading I'v seen in a long time.

The big high cleared the skies, allowing for plenty of radiational cooling at night. Any warmth we build during the day is quickly radiated back into space at night. Calm winds tonight will mean even colder lows away from the urban areas and in normally colder valleys and such.

It was 18 degrees at sunrise this morning on the WeatherDeck in Cockeysville. We touched 21 degrees just before dawn here at Calvert & Centre streets. Here are some other low readings from across the region, thanks to NWS Co-op Observers. Lake-effect snows continue to affect the western counties. Here are some accumulation reports. Here are some webcam views.

Forecasters are calling for a low of 15 degrees tonight at BWI, and 11 degrees out in Westminster. The western mountains will see single digits. Fortunately, winds have died down from their peak yesterday evening. We had a gust of 27 mph here at The Sun last night, and 29 mph at BWI.

The best news, unless you're hungry for more wintry weather, is that the high will be moving off shore this weekend, the jet stream will shove back to the north where it belongs, and we will find ourselves in the return flow around the backside of the high. That will bring mild, moist air up from the Southwest. Forecast highs top 60 degrees for Monday and Tuesday.

Enjoy it. The next cold front is due sometime next week. Here's AccuWeather's take.