1. The condition of the atmosphere with regard to temperature, cloudiness, rainfall, wind, and other meteorological conditions: Today the weather was stormy and wet.
2. The short-term state of the atmosphere, as distinguished from the long-term conditions of "climate"; this includes temperature, humidity, precipitation, wind, visibility, and other factors, chiefly considered in terms of their effects on organic life and human activity: Joe listened to the report about the weather before leaving home to go to work.
3. Specific localized atmospheric situations at a given time; such as, rain or snow: The different weathers in this country vary from very dry to excessively wet or flooding.
4. Etymology: from Middle English weder, wether; from Old English weder, "weather, storm, wind".

1. To change a color, etc., because of the effects of the sun, wind, rain, etc. that develops over a long period of time: The surface of the porch was weathering for a long time.
2. To deal with or to experience something dangerous or unpleasant without being damaged or harmed very much: The couple had to weather some difficult adjustments during the beginning of their marriage.

The travelers weathered some very stormy days when they were hiking in the mountains.