Forecast for station KIAD, forecast created on 272256Z, covering the period from 05/27 23:00Z to 05/29 00:00Z... Forecast calls for wind from heading 170° at 6 knots. Visibility unlimited. Few clouds at 5000 feet. Broken clouds at 25000 feet... From 05/28 08:00Z expect mist. Wind from heading 190° at 3 knots. Visibility 5 miles. Scattered clouds at 500 feet. Scattered clouds at 25000 feet... From 05/28 13:00Z expect wind from heading 200° at 5 knots. Visibility unlimited. Scattered clouds at 3500 feet...