Extreme heat wave threatens U.S. power grids and July 4 travel

The heat wave threatens to overwhelm U.S. grids and may force some to change their plans on one of the busiest travel weeks of the year.

# Extreme heat wave threatens U.S. power grids and July 4 travel The heat wave threatens to overwhelm U.S. grids and may force some to change their plans on one of the busiest travel weeks of the year. **Read the full article:** [CNBC](https://www.cnbc.com/2026/07/03/extreme-heat-us-power-grids-july-4-travel.html) *This article was originally published by CNBC. MoneyWiseInc provides expert curation of the best financial content from trusted sources.*