Longview USA 14 day weather forecast timeanddatecomLong view , Washington, the weather is fair and agreeable all year round. Whether you are touring the dynamic downtown area or adventuring the surrounding picturesque landscapes, you can expect relaxing weather throughout your stay. From balmy summers to cool autumns, and from moderate winters to invigorating springs, Longview, Washington offers a variety of open-air activities for nature enthusiasts. So bring your sunblock and umbrella, as Longview, Washington's weather is ready to delight you with its variable and endearing conditions.