Explore the energetic and diverse weather patterns of Los Angeles and the Southwest region for July 2025. From sunny Los Angeles to the heat waves of Las Vegas, understand how the weather plays out during the hot summer month.

As July 2025 unfolds, Los Angeles welcomes you with pleasant 76-degree afternoons and smooth southern breezes. The city, known for its clear skies, contrasts sharply with the soaring temperatures seen in Las Vegas and Phoenix, where the mercury crosses 110 degrees. Dive into our comprehensive analysis of the Southwest’s high-pressure system, ensuring sunny days and increasing fire risks. Plus, safety tips against the high UV index are provided, encouraging the use of sunscreen and protective wear. A line of clouds are moving across the Southwest, bur sunbeams will dominate the Reno area and extending towards Salt Lake City. The radar shows rain showers around Flagstaff, with cooler temperatures expected. Coastal areas of California, including San Diego and Los Angeles, currently experience clear conditions. Ely is experiencing snow showers, bringing chilly and snowy weather to the region.
For the afternoon in Los Angeles, temperatures will remain steady at 76 degrees through 6 PM before dropping slightly to 74 degrees by 8 PM. Expect mostly sunny skies with a gentle breeze from the south at 7 to 8 miles per hour. A mix of sun and light clouds dominates the scene, providing a pleasant and calm environment.
In the Southwest today, temperatures are heating up significantly. Las Vegas is expected to reach a sizzling 110 degrees, while Phoenix is not far behind at 108. Bakersfield and Fresno will both see highs of 106, indicating a hot day across California’s central valley. In contrast, San Francisco remains much cooler at a high of 65, highlighting a sharp temperature difference within the region. Flagstaff will enjoy a more moderate high of 87 degrees, making it a pleasant escape from the heat experienced in cities further south.
Tonight, low temperatures in the Southwest will see significant drops, with Flagstaff cooling to 58 degrees. Las Vegas will experience a low of 84 degrees, while Phoenix remains warmer at 88 degrees. Bakersfield is forecasted to dip to 74 degrees, and San Francisco will be notably cooler at 53 degrees. Expect a chill in the air as these temperatures set the stage for a refreshing start to your Sunday.
Tomorrow in the Southwest, Las Vegas will reach an extreme high of 112 degrees, well above the seasonal average. Phoenix isn’t far behind, with temperatures soaring to 110 degrees, indicating a continued heatwave in the area. Fresno will heat up to 104 degrees, while Bakersfield is expected to see a high of 105 degrees. In contrast, coastal areas like San Diego will remain milder at 77 degrees, but still warm for the oceanfront. San Francisco will be the coolest spot, with a high of only 65 degrees, dramatically lower than the rest of the region.
A high-pressure system dominates the Southwest region, ensuring largely sunny and dry conditions. Expect temperatures to rise into the mid to high 90s, particularly affecting areas like Phoenix and Las Vegas. Coastal regions of Southern California may experience morning fog, transitioning to sunny skies by afternoon. Watch for gusty winds in and around mountain passes, contributing to increased fire danger. No significant storms or precipitation are forecasted over the next 48 hours.
Los Angeles will experience a very high UV index of 11 throughout the weekend, with burn times as quick as 11 minutes in direct sunlight. Be sure to apply a broad-spectrum sunscreen, wear hats, sunglasses, and seek shade when possible!