Longview Texas 7day Weather Forecast Long view , Washington State, the weather is temperate and enjoyable all year round. Whether you are exploring the dynamic downtown area or exploring the surrounding breathtaking landscapes, you can expect relaxing conditions throughout your stay. From balmy summers to crisp autumns, and from gentle winters to refreshing springs, Longview, Washington offers a plethora of outdoor activities for outdoor lovers. So carry your sunscreen and umbrella, because Longview, Washington's weather is ready to delight you with its unpredictable and charming conditions.