This week in the Southwest, temperatures are hitting new highs. With a deep dive into Salt Lake City’s weather, you’ll find everything from heat wave alerts to cool evening forecasts. Stay prepared and informed with our latest weather guide.

As you step outside in Salt Lake City, expect more than just your average weather conditions. We’re seeing a range of temperatures across the Southwest, with some cities like Phoenix feeling the burn at 116 degrees and others, like San Francisco, keeping cool at 64. Brace yourself for the evening chills or scorching days depending on where you’re at, and don’t forget to tune in for tomorrow’s shifts, including potential thunderstorms and cooler winds. Full details on what to expect this week in Southwest weather are available on our blog at https://amyfreeze.ai/
The Southwest region is experiencing varied weather conditions. Southeastern California, including areas near San Diego, is seeing clear conditions, while rain showers are grazing the northern coastal areas around Redding. Ely, along with parts of Nevada, is under clear skies. In stark contrast, the weather remains dry around Las Vegas and Phoenix, maintaining warm, arid conditions for the day.
For this evening in Salt Lake City, temperatures are expected to start at a warm 99 degrees at 9 PM, gradually decreasing to 92 degrees by 11 PM, and reaching 86 degrees by 1 AM. The weather will remain clear and sunny, with wind coming from the south-southwest at 18 miles per hour, easing slightly to 15 miles per hour overnight.
Tonight in the Southwest, Ely will see a chilly low of 42 degrees. Flagstaff isn’t far behind, with a low dipping to 50. Redding and San Francisco will stay relatively mild at 55 and 52 degrees, respectively, while Los Angeles will cool off to 61. Expect a notably warmer night in Las Vegas at 77 degrees.
Tomorrow in Las Vegas, expect a scorching high of 105 degrees, well above average for this time of year. Phoenix is set to rise even higher at 109 degrees, signaling a heat wave that’s affecting the region. Bakersfield will also feel the heat with a high of 90 degrees, while Fresno reaches 87 degrees. Farther west, San Diego will experience a cooler day at 73 degrees, providing some relief from higher temperatures. San Francisco remains mild at 64 degrees, contrasting sharply with the generally hotter conditions across the Southwest.
On the futurecast for the Southwest tomorrow, expect a notable shift as a low-pressure system moves eastward. Southern California, including Los Angeles and San Diego, will experience scattered showers with possible isolated thunderstorms, leading to slick roads and reduced visibility. In Arizona, areas like Phoenix will remain mostly sunny with temperatures climbing into the low 90s, but a chance of afternoon gusty winds could disrupt outdoor plans. The Four Corners region should brace for potential evening thunderstorms, especially near Flagstaff, with the possibility of localized flooding in low-lying areas.
The UV index in Salt Lake City is very high today at a level of 9, indicating a burn time of about 15 minutes in direct sunlight. For Friday, expect similar conditions with another UV index of 9 and the same short burn time of 15 minutes.
For the 7-day forecast in Salt Lake City: Thursday: Clear skies with a hot high of 100 degrees and a comfortable low of 71 degrees. Friday: Another clear day, with some wind. High of 94 degrees, cooling to 57 at night. Saturday: Partly cloudy conditions with a pleasant high of 74 degrees and a low of 46 degrees. Sunday: Mostly clear with the temperature reaching up to 68 degrees and a low of 47 degrees. Monday: Partly cloudy skies as temperatures rise, expecting a high of 78 degrees, with lows around 54 degrees. Tuesday: A mix of sun and clouds with a warmer high of 85 degrees, dipping to 58 degrees overnight. Wednesday: Partly cloudy and slightly warmer again with a daytime high of 86 degrees and a nighttime low of 59 degrees.