Gateway Arch (St. Louis) is a Route 66 attraction in Missouri (mile marker 300). Iconic 630-ft arch, Route 66 western gateway symbol. It sits at approximately 38.625°N, 90.185°W. BloomWX gives road-trip-ready weather: hourly forecast, radar, heat and air-quality signals, sunrise and sunset, and any active alerts along this stretch of the Mother Road. Data refreshes every 60 seconds from weather.gov and partner sources.
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