Cities Facing Triple Digit Temperatures This Holiday Weekend

By Evan Comen • July 4, 2025

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Summer heat is building across the West and Southwest this holiday weekend, with millions of Americans staring down a stretch of triple-digit temperatures as Fourth of July celebrations kick off. Extreme heat is forecast to bake communities from California’s Imperial Valley to Arizona’s deserts, pushing heat risk into dangerous territory for several days in a row.

The National Weather Service issued heat advisories in 109 counties, representing over five million Americans. According to NWS HeatRisk forecasts, heat risk will migrate east over the weekend, with some cities facing extreme heat risk by Sunday. A closer look at the data reveals the major cities facing triple-digit temperatures this holiday weekend

To determine the cities where it will be over 100°F this weekend, Climate Crisis 247 reviewed daily high temperature forecasts from the National Digital Forecast Database of the NOAA. Cities were ranked based on average forecast maximum temperatures from July 4 to July 6, 2025. Supplemental data on heat risk classifications are based on data from the National Weather Service’s HeatRisk tool. Only cities with at least 50,000 residents were considered.

25. Buckeye, AZ

Photo by Brandon Russell on Unsplash

Forecast high, July 4th, 2025: 102.1°F
Forecast high, July 5th, 2025: 103.9°F
Forecast high, July 6th, 2025: 105.6°F
Total population: 95,042

24. Surprise, AZ

Photo by PublicDomainPictures on Pixabay

Forecast high, July 4th, 2025: 101.9°F
Forecast high, July 5th, 2025: 103.5°F
Forecast high, July 6th, 2025: 105.7°F
Total population: 145,591

23. Maricopa, AZ

Photo by CHUTTERSNAP on Unsplash

Forecast high, July 4th, 2025: 102.5°F
Forecast high, July 5th, 2025: 103.5°F
Forecast high, July 6th, 2025: 105.7°F
Total population: 59,605

22. Gilbert, AZ

Photo by Joe Cook on Unsplash

Forecast high, July 4th, 2025: 101.9°F
Forecast high, July 5th, 2025: 103.9°F
Forecast high, July 6th, 2025: 105.8°F
Total population: 267,267

21. Tempe, AZ

Photo by Sid Siv on Unsplash

Forecast high, July 4th, 2025: 101.9°F
Forecast high, July 5th, 2025: 103.9°F
Forecast high, July 6th, 2025: 105.9°F
Total population: 181,005

20. Chandler, AZ

Photo by Jonathan Meyer on Unsplash

Forecast high, July 4th, 2025: 102.3°F
Forecast high, July 5th, 2025: 103.8°F
Forecast high, July 6th, 2025: 106.0°F
Total population: 275,618

19. Sun City West, AZ

Photo by Logan Hughes on Unsplash

Forecast high, July 4th, 2025: 102.8°F
Forecast high, July 5th, 2025: 103.9°F
Forecast high, July 6th, 2025: 106.1°F
Total population: 26,639

18. Cathedral City, CA

Photo by Steve Gribble on Unsplash

Forecast high, July 4th, 2025: 102.6°F
Forecast high, July 5th, 2025: 104.8°F
Forecast high, July 6th, 2025: 106.1°F
Total population: 51,964

17. Glendale, AZ

Photo by Avi Waxman on Unsplash

Forecast high, July 4th, 2025: 102.3°F
Forecast high, July 5th, 2025: 104.0°F
Forecast high, July 6th, 2025: 106.2°F
Total population: 248,083

16. Avondale, AZ

Photo by Jeffrey Eisen on Unsplash

Forecast high, July 4th, 2025: 101.9°F
Forecast high, July 5th, 2025: 104.0°F
Forecast high, July 6th, 2025: 106.3°F
Total population: 89,214

15. Sun City, AZ

Photo by Jakob Owens on Unsplash

Forecast high, July 4th, 2025: 102.8°F
Forecast high, July 5th, 2025: 103.9°F
Forecast high, July 6th, 2025: 106.4°F
Total population: 37,748

14. Lake Havasu City, AZ

Photo by Chris Kofoed on Unsplash

Forecast high, July 4th, 2025: 102.9°F
Forecast high, July 5th, 2025: 104.3°F
Forecast high, July 6th, 2025: 106.4°F
Total population: 57,294

13. Fortuna Foothills, AZ

Photo by Sini on Pexels

Forecast high, July 4th, 2025: 102.2°F
Forecast high, July 5th, 2025: 104.1°F
Forecast high, July 6th, 2025: 106.5°F
Total population: 27,552

12. Bullhead City, AZ

Photo by Natalie Wagner on Unsplash

Forecast high, July 4th, 2025: 102.9°F
Forecast high, July 5th, 2025: 104.5°F
Forecast high, July 6th, 2025: 106.7°F
Total population: 41,593

11. El Mirage, AZ

Photo by jplenio on Pixabay

Forecast high, July 4th, 2025: 103.0°F
Forecast high, July 5th, 2025: 103.9°F
Forecast high, July 6th, 2025: 107.0°F
Total population: 35,652

10. Coachella, CA

Photo by Sergio Mello on Unsplash

Forecast high, July 4th, 2025: 103.6°F
Forecast high, July 5th, 2025: 105.4°F
Forecast high, July 6th, 2025: 107.1°F
Total population: 42,279

9. Palm Desert, CA

Photo by Steve Ussery on Unsplash

Forecast high, July 4th, 2025: 103.1°F
Forecast high, July 5th, 2025: 105.5°F
Forecast high, July 6th, 2025: 107.4°F
Total population: 51,290

8. Goodyear, AZ

Photo by Kate on Unsplash

Forecast high, July 4th, 2025: 103.7°F
Forecast high, July 5th, 2025: 105.3°F
Forecast high, July 6th, 2025: 107.6°F
Total population: 97,542

7. Calexico, CA

Photo by Rares Ioan on Unsplash

Forecast high, July 4th, 2025: 105.3°F
Forecast high, July 5th, 2025: 106.7°F
Forecast high, July 6th, 2025: 107.8°F
Total population: 38,599

6. Indio, CA

Photo by Ben den Engelsen on Unsplash

Forecast high, July 4th, 2025: 103.7°F
Forecast high, July 5th, 2025: 105.9°F
Forecast high, July 6th, 2025: 107.8°F
Total population: 89,616

5. La Quinta, CA

Photo by Thomas Morgan on Unsplash

Forecast high, July 4th, 2025: 104.0°F
Forecast high, July 5th, 2025: 106.2°F
Forecast high, July 6th, 2025: 107.9°F
Total population: 37,933

4. San Luis, AZ

Photo by Johannes Plenio on Pexels

Forecast high, July 4th, 2025: 103.9°F
Forecast high, July 5th, 2025: 106.1°F
Forecast high, July 6th, 2025: 108.0°F
Total population: 35,189

3. Yuma, AZ

Photo by Clay Elliot on Unsplash

Forecast high, July 4th, 2025: 103.6°F
Forecast high, July 5th, 2025: 106.0°F
Forecast high, July 6th, 2025: 108.0°F
Total population: 96,314

2. El Centro, CA

Photo by Joseph Vogel on Pexels

Forecast high, July 4th, 2025: 105.9°F
Forecast high, July 5th, 2025: 107.9°F
Forecast high, July 6th, 2025: 108.7°F
Total population: 44,184

1. Brawley, CA

Photo by Chris Montgomery on Unsplash

Forecast high, July 4th, 2025: 105.7°F
Forecast high, July 5th, 2025: 108.0°F
Forecast high, July 6th, 2025: 109.0°F
Total population: 26,509

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