Longview WA Daily Weather Long-view , Washington State, the weather is fair and pleasing all year round. Whether you are visiting the dynamic downtown area or adventuring the surrounding scenic landscapes, you can expect comfortable conditions throughout your stay. From balmy summers to brisk autumns, and from moderate winters to refreshing springs, Longview, Washington offers a abundance of outdoor activities for outdoor lovers. So carry your sunscreen and umbrella, as Longview, Washington's weather is ready to delight you with its unpredictable and endearing conditions.