As A Major Heat Wave Moves In, New York, Detroit And Other Cities Forecast to Set New Temperature Records

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This weekend, a major heat wave is set to bake large portions of the Northeast and Mid-Atlantic, pushing daily temperature maximum to near-record highs.

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Nationwide, 1,208 counties are under heat advisories from the National Weather Service, representing more than one-third of the U.S. population. According to the NWS HeatRisk forecast, while 222 counties will experience major heat risk on Friday, that number will nearly triple to 658 counties by Sunday. Some 17 counties will experience extreme heat risk – the most severe category of heat risk – on Sunday, representing 2.0 million Americans.

More than two dozen major cities ranging from Michigan to Florida are forecast to break daily temperature records. While New York temperatures could exceed records by 2°F, some cities could see records shattered by more than 5°F. A closer look at the data reveals the cities most likely to break heat records this weekend.

To determine the cities most likely to break heat records this weekend, Climate Crisis 247 reviewed 72-hour temperature forecasts and historical daily records from the NOAA. Cities were ranked based on the gap between forecast highs for July 25 to July 27, 2025, and historical maximum temperatures for those dates. Gridded forecast data are from the National Digital Forecast Database, while historical temperatures are from the Global Historical Climatology Network daily program of the National Centers for Environmental Information. Weather stations were matched to places using nearest neighbor analysis and were limited to cities within 50 miles of the city centroid. Only cities with at least 50,000 residents were considered.

25. New York, NY

• Forecast high, July 25: 92.0°F (-4.1°F below 2022 record)
• Forecast high, July 26: 98.0°F (+1.9°F above 1892 record)
• Forecast high, July 27: 90.0°F (-9.0°F below 1940 record)
• Total population: 8,622,467

 

24. Corpus Christi, TX

• Forecast high, July 25: 98.0°F (+1.9°F above 1981 record)
• Forecast high, July 26: 94.0°F (-1.0°F below 2001 record)
• Forecast high, July 27: 92.9°F (-2.1°F below 1953 record)
• Total population: 317,804

 

23. Taylor, MI

• Forecast high, July 25: 94.9°F (+1.9°F above 1964 record)
• Forecast high, July 26: 87.0°F (-9.1°F below 1978 record)
• Forecast high, July 27: 87.0°F (-8.0°F below 1964 record)
• Total population: 62,937

 

22. Malden, MA

• Forecast high, July 25: 90.0°F (-5.0°F below 1921 record)
• Forecast high, July 26: 94.9°F (+1.9°F above 1921 record)
• Forecast high, July 27: 81.9°F (-12.0°F below 1921 record)
• Total population: 65,463

 

21. Jupiter, FL

• Forecast high, July 25: 92.0°F (-1.9°F below 1940 record)
• Forecast high, July 26: 92.0°F (+2.0°F above 1940 record)
• Forecast high, July 27: 92.0°F (+0.1°F above 1940 record)
• Total population: 60,926

 

20. Alexandria, VA

• Forecast high, July 25: 92.0°F (-5.0°F below 1901 record)
• Forecast high, July 26: 99.0°F (+2.0°F above 1949 record)
• Forecast high, July 27: 94.9°F (-2.1°F below 1949 record)
• Total population: 157,594

 

19. Columbia, MD

• Forecast high, July 25: 90.9°F (-5.2°F below 1987 record)
• Forecast high, July 26: 97.1°F (+2.1°F above 1987 record)
• Forecast high, July 27: 92.0°F (-4.1°F below 1993 record)
• Total population: 106,600

 

18. Newton, MA

• Forecast high, July 25: 90.0°F (-6.1°F below 1963 record)
• Forecast high, July 26: 96.0°F (+2.1°F above 1934 record)
• Forecast high, July 27: 83.9°F (-13.1°F below 1949 record)
• Total population: 88,453

 

17. Detroit, MI

• Forecast high, July 25: 96.0°F (+2.1°F above 1949 record)
• Forecast high, July 26: 87.0°F (-9.1°F below 1953 record)
• Forecast high, July 27: 87.0°F (-13.0°F below 1955 record)
• Total population: 636,787

 

16. West Haven, CT

• Forecast high, July 25: 87.0°F (-2.1°F below 2010 record)
• Forecast high, July 26: 94.0°F (+2.1°F above 2005 record)
• Forecast high, July 27: 87.0°F (-6.0°F below 2020 record)
• Total population: 55,336

 

15. Flint, MI

• Forecast high, July 25: 94.0°F (+2.1°F above 1949 record)
• Forecast high, July 26: 85.0°F (-10.0°F below 1953 record)
• Forecast high, July 27: 85.0°F (-8.9°F below 1955 record)
• Total population: 81,863

 

14. New Haven, CT

• Forecast high, July 25: 88.1°F (-1.0°F below 2010 record)
• Forecast high, July 26: 94.0°F (+2.1°F above 2005 record)
• Forecast high, July 27: 88.1°F (-4.9°F below 2020 record)
• Total population: 135,736

 

13. Palm Beach Gardens, FL

• Forecast high, July 25: 92.0°F (-1.9°F below 1940 record)
• Forecast high, July 26: 92.9°F (+2.9°F above 1940 record)
• Forecast high, July 27: 94.0°F (+2.1°F above 1940 record)
• Total population: 59,088

 

12. Medford, MA

• Forecast high, July 25: 90.0°F (-5.0°F below 1921 record)
• Forecast high, July 26: 96.0°F (+3.0°F above 1921 record)
• Forecast high, July 27: 83.0°F (-10.9°F below 1921 record)
• Total population: 61,748

 

11. Levittown, NY

• Forecast high, July 25: 85.0°F (-12.0°F below 2010 record)
• Forecast high, July 26: 94.0°F (+3.0°F above 1999 record)
• Forecast high, July 27: 87.0°F (-8.0°F below 1999 record)
• Total population: 50,804

 

10. Pawtucket, RI

• Forecast high, July 25: 87.0°F (-4.9°F below 1933 record)
• Forecast high, July 26: 94.0°F (+3.0°F above 1914 record)
• Forecast high, July 27: 83.9°F (-7.1°F below 1921 record)
• Total population: 75,176

 

9. Norwalk, CT

• Forecast high, July 25: 89.0°F (-2.9°F below 1982 record)
• Forecast high, July 26: 94.9°F (+3.0°F above 1963 record)
• Forecast high, July 27: 87.0°F (-4.9°F below 1963 record)
• Total population: 91,050

 

8. Providence, RI

• Forecast high, July 25: 85.9°F (-6.0°F below 1933 record)
• Forecast high, July 26: 94.0°F (+3.0°F above 1914 record)
• Forecast high, July 27: 85.0°F (-6.0°F below 1921 record)
• Total population: 189,715

 

7. Brandon, FL

• Forecast high, July 25: 94.0°F (-2.1°F below 1931 record)
• Forecast high, July 26: 94.9°F (-0.1°F below 1931 record)
• Forecast high, July 27: 97.1°F (+3.2°F above 1932 record)
• Total population: 114,923

 

6. Sterling Heights, MI

• Forecast high, July 25: 97.1°F (+3.2°F above 1949 record)
• Forecast high, July 26: 85.9°F (-10.2°F below 1953 record)
• Forecast high, July 27: 85.9°F (-14.1°F below 1955 record)
• Total population: 133,744

 

5. Warren, MI

• Forecast high, July 25: 97.1°F (+3.2°F above 1949 record)
• Forecast high, July 26: 85.9°F (-10.2°F below 1953 record)
• Forecast high, July 27: 85.9°F (-14.1°F below 1955 record)
• Total population: 138,588

 

4. Tampa, FL

• Forecast high, July 25: 94.0°F (-2.1°F below 1931 record)
• Forecast high, July 26: 94.9°F (-0.1°F below 1931 record)
• Forecast high, July 27: 97.1°F (+3.2°F above 1932 record)
• Total population: 388,768

 

3. Somerville, MA

• Forecast high, July 25: 90.0°F (-5.0°F below 1921 record)
• Forecast high, July 26: 97.1°F (+4.1°F above 1921 record)
• Forecast high, July 27: 83.0°F (-10.9°F below 1921 record)
• Total population: 80,464

 

2. Cambridge, MA

• Forecast high, July 25: 90.9°F (-4.1°F below 1921 record)
• Forecast high, July 26: 97.1°F (+4.1°F above 1921 record)
• Forecast high, July 27: 83.9°F (-10.0°F below 1921 record)
• Total population: 117,962

 

1. Yonkers, NY

• Forecast high, July 25: 90.9°F (-5.2°F below 1910 record)
• Forecast high, July 26: 97.1°F (+6.1°F above 1903 record)
• Forecast high, July 27: 90.0°F (-1.9°F below 1899 record)
• Total population: 209,780

 

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