Advanced weather from free OpenMeteo API: historical data, detailed variable selection, model choice, past-days, and in-depth forecasts. Use when the user asks about historical weather, specific weather models, niche variables (pressure, dew point, snow depth, etc.), or needs fine-grained control beyond simple current/forecast queries.

通过免费的 OpenMeteo API 获取高级天气数据：支持历史数据、详细变量选择、模型选择、过去多日数据以及深度预报。当用户询问历史天气、特定天气模型、小众变量（如气压、露点、积雪深度等）或需要超越简单实时/预报查询的精细化控制时使用。