If you planning to travel to Whitman Mission National Historic Site, Walla Walla, Washington, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 3:32 PM. The temperature feels like 34 with a humidity level of 96 so dress accordingly. Cloud coverage is 77 percent with visibility at 5 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:12 AM.