National Weather Service United States Department of Commerce

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Click a location below for detailed forecast.

Last Map Update: Wed, Aug 19, 2026 at 5:30:11 pm MDT

Typical mid to late August conditions are expected through the weekend with warm daytime conditions and comfortable nights. Dry weather is expected until the weekend when the southwest monsoonal flow will bring another round of thunderstorms.

 

Text Product Selector (Selected product opens in current window)