As spring unfolds across the United States, travelers need to be aware of the diverse weather conditions that can impact their plans. The Midwest and Northeast are expected to experience cooler temperatures and occasional rain showers, requiring travelers to pack layers and stay informed about potential delays. In contrast, the Southeast will likely see warmer and more humid conditions, making lightweight clothing and hydration essential. The West Coast, particularly California, is forecasted to have mild and dry weather, perfect for outdoor activities, though travelers should be prepared for temperature fluctuations between day and night.