Dive into this week’s weather forecast across the Southwest, from sunny skies in California to blistering heat in Phoenix and a clear weekend in Salt Lake City. Be prepared for what the weather holds!

This detailed blog post provides insights into the varying weather conditions across the Southwest, highlighting different regions from sunny Salt Lake City to the hot spots like Phoenix and Las Vegas. Learn about temperature trends, potential weather shifts, and precautions for high UV indexes. Discover how weather variations might impact your plans and how to stay safe and comfortable in fluctuating temperatures. Full forecast and advice included! Across the Southwest, the radar indicates clear skies over much of California, from Redding down to Los Angeles, providing sunshine for the region. However, light showers are making their way into San Diego and creeping along the southern coastline. Over the Sierra Nevada, including areas near Reno and Ely, expect some cloud coverage but no immediate precipitation. In Arizona, Flagstaff and Phoenix remain dry, while the surrounding areas maintain calm weather conditions.
Salt Lake City will enjoy a sunny afternoon with temperatures climbing to 83 degrees by 4 PM and peaking at 85 degrees around 6 PM. A light northwest wind will accompany, blowing at 9 to 10 miles per hour, adding a gentle breeze to the warm afternoon.
Today’s high temperatures in the Southwest are quite warm. Las Vegas reaches 102 degrees, while Phoenix is even hotter at 105 degrees. In California, Los Angeles has a pleasant high of 74 degrees, but further north in San Francisco, temps are much cooler at 64. Bakersfield and Fresno both peak at 99 degrees, showcasing the heat across the Central Valley. Flagstaff sees a milder day with a high of 82 degrees.
Tonight in the Southwest, Las Vegas will cool down to 79 degrees, while Phoenix is expected to drop to a mild 78. Flagstaff is set for a colder night, with temperatures falling to 49 degrees, and nearby Cedar City will see lows around 56 degrees. In California, San Francisco will dip to 53 degrees, while Bakersfield will remain relatively warmer at 71 degrees.
Tomorrow in Phoenix, expect a scorching high of 107 degrees, well above average for this time of year. Las Vegas will also feel the heat, with a high reaching 106 degrees under clear skies. In the southern California region, Bakersfield is forecasted to hit 100 degrees, while Fresno warms up to 99 degrees. Coastal areas will be milder, with Los Angeles at 76 degrees and San Diego seeing a pleasant 72 degrees. San Francisco remains the coolest spot at just 62 degrees, reflecting the influence of marine layers.
Expect a shift in the weather for the Southwest tomorrow as a low-pressure system develops off the coast. Scattered showers and thunderstorms will increase in intensity from central California through Nevada, potentially bringing localized flooding. Strong winds accompanying the system may cause tricky driving conditions across desert highways. Temperatures will drop significantly, bringing cooler conditions especially in northern regions by Wednesday.
In Salt Lake City, this weekend brings a very high UV index of 9 on both Saturday and Sunday, with sun exposure risks making it essential to protect your skin from burns. Expect burn times as quick as 15 minutes in direct sunlight.