article_snippet: Warm weather has returned at last to the Northeast and Midwest, after months of frigid winter.
article_snippet: According to forecasts, the warmth is set to remain for at least the next few days, melting much of the snow still remaining across the northern parts of the country.
article_snippet: Cities across the Midwest and Northeast are warming up - and are due to stay that way for some days .
article_snippet: Higher temperatures have already been creeping northwards over the weekend, especially in the lower Midwest.
article_snippet: Warmer temperatures are due to remain at least as long as Tuesday, which will see some central areas of the United States soar to 25 degrees above some central areas of the United States regular mid-March average.
article_snippet: Heating up: According to AccuWeather, the above highs could strike halfway into next week .
article_snippet: The Weather Channel shows above how the changing jet stream will affect temperatures .
article_snippet: Around the Great Lakes, highs above freezing point will settle in.
article_snippet: According to AccuWeatherforecasters, the high temperatures are linked to changes in frigid arctic air systems.
article_snippet: Alex Sosnowski, a senior meteorologist, said: 'A change in the weather pattern will turn off arctic air invasions to allow the March sun to go to work over much of the central and northeastern United States'.
highlights_snippet: Warmth is due to continue into next week, with highs breaching 60°F .
  