雪后北风渐起，北京未来一周气温持续偏低

Summary of Key Points Core Viewpoint - The weather in Beijing has been significantly impacted by recent snowfall, leading to low temperatures and warnings for residents to take precautions against cold and icy conditions [4][11][19]. Weather Conditions - From January 17 to January 18, the highest temperature recorded was -2.8°C and the lowest was -8°C [3]. - Snowfall occurred primarily from the evening of January 17 to the night, with an average snowfall of 1.2 mm across the city and a maximum of 9.9 mm in Fengtai District [4]. - Snow depth varied, with areas like Fangshan and Mentougou experiencing 10-20 cm of snow, while other regions had 0-4 cm [4]. Warnings and Precautions - A blue wind warning was issued, advising residents to be cautious of high winds and potential hazards from falling objects [11]. - A yellow warning for icy roads was also in effect, indicating that travel could be hazardous due to snow and ice accumulation [13]. Upcoming Weather Forecast - The forecast indicates continued low temperatures, with daytime highs around -5°C and nighttime lows dropping to -13°C [19][20]. - A gradual warming trend is expected next week, with temperatures potentially rising above freezing later in the week [20][31]. Health and Safety Advisories - Residents are advised to dress warmly and take precautions against cold-related health issues, particularly for vulnerable populations [22][25]. - Specific indices indicate high risks for cardiovascular issues and discomfort due to cold weather, suggesting limited outdoor activities [25][26][27].