National Weather Service United States Department of Commerce

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

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Last Map Update: Wed, Jul 1, 2026 at 2:42:47 pm CDT

Hot and humid weather continues on Wednesday, with a Heat Advisory again posted for parts of west-central Arkansas. These areas are where the highest heat index values are expected.
Hot and humid conditions persist through this week across eastern Oklahoma and northwest Arkansas. Be aware of signs of heat stress and take precautions with outdoor activities.
Isolated thunderstorms will become possible again by late week, primarily in the terrain areas of far eastern Oklahoma and northwest Arkansas each afternoon. Organized severe weather is not expected, but brief heavy downpours and gusty winds could accompany any storm.
Hot and humid conditions are on deck for the afternoon and evening of July 4th. Mother Nature may provide some fireworks of her own in southeast Oklahoma and western Arkansas, with a low chance of thunderstorms.
With June 2026 wrapped up, the temperature and precipitation statistics for Tulsa, Fort Smith and Fayetteville confirm that it was a climatologically wet month for all 3 sites, with Tulsa and Fort Smith averaging slightly below normal high temperatures and above normal low temperatures. Fayetteville ended up with above normal high and low temperatures for the month. We wonder what July will bring!
Hot and humid weather will persist through the rest of the week and through the July 4th weekend. Daily low chances for showers and thunderstorms will develop in southeast Oklahoma and western Arkansas late this week, increasing in coverage and spreading west late in the weekend.
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