Venersborg WA 10Day Weather Forecast The Weather ChannelLong-view , Washington State, the weather is moderate and delightful all year round. Whether you are touring the vibrant downtown area or discovering the surrounding scenic landscapes, you can expect relaxing conditions throughout your stay. From warm summers to cool autumns, and from moderate winters to invigorating springs, Longview, Washington offers a plethora of alfresco activities for adventure seekers. So pack your sun lotion and parasol, because Longview, Washington's weather is ready to impress you with its changeful and captivating conditions.