北京今夜到明天白天阵风七级左右，周五最高温跌至-2℃

Group 1 - The core viewpoint of the article highlights the significant temperature fluctuations in Beijing, with a warm day expected today, reaching around 11℃, potentially setting a new high for this winter [1] - Meteorological authorities indicate that a cold front will arrive soon, leading to a drop in temperatures, with highs expected to fall below freezing to around -2℃ by Friday [3] - The article emphasizes the need for residents to adjust their clothing accordingly due to the rapid temperature changes, advising caution against cold-related illnesses [3]