From LA’s sunny 74°F afternoon to Vegas’ high of 109°F, the Southwest faces diverse conditions. Dive in for detailed forecasts and safety tips!

Welcome to your detailed Southwest weather outlook for July 15, 2025. Los Angeles enjoys sunny skies, while parts of California and Nevada brace for contrasting conditions as a cold front approaches. Discover how this affects temperatures, brings potential thunderstorms, and impacts UV risks. California’s northwestern coast near Redding experiences light showers, while the region across Southern Nevada, including Ely, remains dry. Salt Lake City sees scattered precipitation, possibly indicative of passing showers or thunderstorms. Across the southwestern part of the region, San Francisco to San Diego enjoys clear conditions, though Fresno and Bakersfield are cloudy. Clear skies dominate the Arizona region, including Phoenix and Flagstaff, promoting warm and dry conditions.
Los Angeles is in for a mostly sunny afternoon, with temperatures climbing to 74 degrees at 4 PM. Winds are gently coming from the south at 7 miles per hour, keeping things pleasant. By 6 PM, the temperature rises slightly to 75 degrees, under clear skies with a slight southern breeze. As we move towards 8 PM, expect temperatures to settle at 73 degrees, with winds shifting to the south-southwest at 8 miles per hour.
In the Southwest today, Las Vegas is hitting a sizzling 109 degrees, while Phoenix is not far behind at 106. Bakersfield will see a high of 105, making it another hot spot in California. In contrast, San Francisco is significantly cooler at just 63 degrees, influenced by coastal breezes. Fresno is enjoying a warm 103, showcasing the typical summer heat across the region.
Tonight in the Southwest, San Francisco will dip to 57 degrees, while Fresno will cool down to 66. Bakersfield is expected to reach a low of 71, and Los Angeles will see 62. Flagstaff drops significantly to 55 degrees, indicating a notable chill in the region.
Tomorrow in Las Vegas, expect a scorching high of 104 degrees, well above average for this time of year. Bakersfield will not be far behind, with temperatures reaching 99 degrees. Fresno is also heating up with a high of 98 degrees, consistent with recent warming trends. In Phoenix, temperatures remain warm at 97 degrees, while San Diego will see a cooler day at 75 degrees.
A cold front will sweep through the Southwest tomorrow, bringing thunderstorms from Phoenix to Las Vegas. Watch out for potential severe weather with gusty winds, especially in Southern Nevada. Expect temperatures to drop following the frontal passage, bringing relief from the recent heat wave. Showers will move into areas like Flagstaff by late afternoon. Conditions should clear by late evening, setting the stage for a cooler, drier Wednesday.
Los Angeles will experience very high UV levels on Tuesday and Wednesday, with a UV index of 11 and a burn time of just 11 minutes. Use extreme caution, as these levels can cause skin damage quickly.