More Than Half the US on Alert for Extreme Heat: What to Know

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For an optimal experience visit our site on another browser.Skip to ContentToday Logo ShopShop the ShowPrime Day 2026Summer of SavingsShop TODAY SavingsRanked by Shop TODAYSteals & DealsStuff We Love NewsletterAdd Us To GoogleAward WinnersStep Into Style ParentsBaby NamesKids HealthFamilyBabiesParenting TipsLOL LifeAstrologyHolidaysQuotesJokesTriviaSign up  / Sign inHi Search DashboardMy SavedNewslettersProfileStart TODAY SubscriptionSearch TodaySearchSectionsHealth & WellnessParentingFoodShopPop CultureNewsLifeStyleShowsTODAY3rd Hour of TODAYTODAY with Jenna & SheinelleSaturday TODAYSunday TODAY with Willie GeistWatch Full EpisodesMoreNewsLifeBooksTrendingRecipesRead With JennaAstrologyInspirational HolidaysRelationshipsTODAY RecipesNewslettersStart TODAYJokesShop TODAY AwardsCiti Concert SeriesPodcastsAboutFollow todayMore BrandsNBC News LogoFacebookPinterestEmailSMSBlue SkyPrintWhatsappRedditFlipboardTwitterLinkedinOn the ShowShopHealthStart TODAYParentsFoodLifeMore Than Half the US on Alert for Extreme Heat: What to KnowJuly 2, 202604:04Couple Who Climbed Empire State Building Face Multiple Charges02:27Trump Made 327 Stock Trades 1 Day Before Tariff Pause: Filings02:09Record-Setting Travel Underway Ahead of July 4 Holiday02:14Now PlayingMore Than Half the US on Alert for Extreme Heat: What to Know04:04UP NEXTInside Startup Cookie Brand 'Fields Good'04:57California Bans ‘Sell By’ Labels in New Push to Cut Food Waste00:38Danny Glover Talks Support From Family Amid Alzheimer’s Battle05:27Boys Spread Patriotism With Neighborhood Flag Display01:00Egg Firms Shell Out $3.3M, 53M Eggs in Price-Fixing Settlement00:30Exclusive: Danny Glover Opens up About Alzheimer’s Diagnosis05:29LeBron James to Play Another Season...But Not With the Lakers02:57Trump Made More Than $1 Billion in Crypto Income, Filing Shows02:34Supreme Court Deals Major Blow to Trump on Birthright Citizenship02:38Record Heatwave Forces Cancellation of Some July 4 Celebrations03:27Dad Shares Mission to Help LGBTQ+ Couples Start Families04:03Dunkin’ Unveils Eagle Cup for United States’ 250th Birthday01:06Music Icons Gather to Pay Tribute to Clive Davis at His Funeral01:52Gen Z Influencers Show That Faith and Fun Can Go Hand-in-Hand06:10Consumers Pay the Price of ‘Funflation’ as Live Event Prices Soar03:10See Baby Eaglet From California Take His First Flight!00:41More Than Half the US on Alert for Extreme Heat: What to Know04:04CopiedCopiedMore than 200 million people are feeling the heat with dangerous and punishing temperatures enveloping the Northeast ahead of the Fourth of July weekend. Forecasters predict several cities could set record highs through the holiday weekend from Detroit to Nashville to Bangor, Maine. NBC’s Ryan Nobles reports and TODAY’s Al Roker tracks the latest forecast.July 2, 2026 Couple Who Climbed Empire State Building Face Multiple Charges02:27Trump Made 327 Stock Trades 1 Day Before Tariff Pause: Filings02:09Record-Setting Travel Underway Ahead of July 4 Holiday02:14Now PlayingMore Than Half the US on Alert for Extreme Heat: What to Know04:04UP NEXTInside Startup Cookie Brand 'Fields Good'04:57California Bans ‘Sell By’ Labels in New Push to Cut Food Waste00:38Danny Glover Talks Support From Family Amid Alzheimer’s Battle05:27Boys Spread Patriotism With Neighborhood Flag Display01:00Egg Firms Shell Out $3.3M, 53M Eggs in Price-Fixing Settlement00:30Exclusive: Danny Glover Opens up About Alzheimer’s Diagnosis05:29LeBron James to Play Another Season...But Not With the Lakers02:57Trump Made More Than $1 Billion in Crypto Income, Filing Shows02:34Supreme Court Deals Major Blow to Trump on Birthright Citizenship02:38Record Heatwave Forces Cancellation of Some July 4 Celebrations03:27Dad Shares Mission to Help LGBTQ+ Couples Start Families04:03Dunkin’ Unveils Eagle Cup for United States’ 250th Birthday01:06Music Icons Gather to Pay Tribute to Clive Davis at His Funeral01:52Gen Z Influencers Show That Faith and Fun Can Go Hand-in-Hand06:10Consumers Pay the Price of ‘Funflation’ as Live Event Prices Soar03:10See Baby Eaglet From California Take His First Flight!00:41Latest Videos02:27Couple Who Climbed Empire State Building Face Multiple Charges02:09Trump Made 327 Stock Trades 1 Day Before Tariff Pause: Filings02:14Record-Setting Travel Underway Ahead of July 4 Holiday04:04More Than Half the US on Alert for Extreme Heat: What to Know04:57Inside Startup Cookie Brand 'Fields Good'27:51How Do You Raise Kids Off Social Media When Social Media Is Your Job?00:38California Bans ‘Sell By’ Labels in New Push to Cut Food Waste01:47Minions Surprise TODAY Fans With Fandango Tickets and Wendy’s03:07Dad Plays Carnival Games to Win Prizes for His Family on TODAY05:383 Heat-Free Ways to Style and Protect Your Hair This Summer3rd Hour of TODAY04:57Inside Startup Cookie Brand 'Fields Good'04:57Kick Off July 2026 With Start TODAY’s Fitness Challenge03:11Here Are the New Movies and TV Shows to Watch in July03:11New Medical Tools and Tests to Ask Your Doctor About05:27Danny Glover Talks Support From Family Amid Alzheimer’s Battle04:24July 2026 Freebies: Slurpees, Apple’s Tech Camp for Kids, More04:20Hot Honey Chicken Skewers, Elote Potato Salad: Get the Recipes04:54Hot Trends for Men and Women Making Waves This Summer04:44Chloë Sevigny Talks Bringing Passion Project to the Screen04:03Dad Shares Mission to Help LGBTQ+ Couples Start FamiliesJenna & Friends07:48Uma Thurman on Lost 'Kill Bill' Scene, Room to Grow Project, More04:25Real or Artificial Tree? 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