First Freeze Targets 30+ States This Weekend
A significant cold air mass is set to impact over 30 states east of the Rockies this weekend, bringing the first freeze of the season to many areas. By Friday, 230 million people will experience below-average temperatures, with morning lows dipping into the 30s °F (0s °C) or lower in several regions. Cities such as Louisville, Indianapolis, and Roanoke, Virginia, are expected to see their first freeze on Saturday and Sunday mornings. The cold air, driven by high pressure from Canada, marks the end of prolonged autumnal warmth influenced by El Niño conditions. Northern Florida will also experience a notable chill, with lows in the upper 30s °F (around 3 °C) and patchy frost inland. Central Florida will see lows in the mid-to-upper 40s °F (7–9 °C), while South Florida will remain slightly warmer with lows in the upper 50s °F (14–15 °C).