Missouri – A cold front moving through Missouri is set to bring the season’s first frost next week, potentially impacting areas along I-44 and U.S. 65. Temperatures are forecast to dip into the 30s by Tuesday, with the National Weather Service in Springfield warning of patchy frost and cooler conditions, especially in higher terrain. The most widespread frost is likely Wednesday morning, when temperatures may fall below 34 degrees across south-central Missouri, creating conditions for the region’s first major frost event this fall.