This evening, Salt Lake City enjoys clear skies with temperatures cooling down from a comfortable 84 degrees. Catch the full forecast and how the Southwest is shaping up for the week.

On June 17, 2025, experience mostly clear skies in Salt Lake City. The Southwest sees varied temperatures – scorching in Phoenix, mild in San Diego, and rainy in Northern California. Stay prepared for a shift in weather with our comprehensive forecast, covering all from temperature highs and lows to UV index warnings.
The Southwest regional radar shows clear skies across most of California, including cities like San Diego, Los Angeles, and San Francisco. Salt Lake City remains dry with high pressure dominating the area.
Temperatures this evening in Salt Lake City start at 84 degrees at 9 PM, cooling to 78 degrees by 11 PM, and reaching 72 degrees by 1 AM. Expect clear skies throughout, with a gentle breeze, initially from the north-northwest at 8 mph, shifting to the east-southeast at 7 mph.
Tonight, temperatures will drop significantly in the Southwest region. Las Vegas will see a low of 62 degrees, while Phoenix cools down to 83 degrees. Bakersfield will rest at a comfortable 71 degrees, but farther north, San Francisco dips to 53. Flagstaff is expected to be cool at 50 degrees, signaling a notable shift in temperatures across the area.
Tomorrow in Phoenix, expect a scorching high of 113 degrees, well above average for this time of year. Las Vegas will sizzle at 112 degrees, while Cedar City reaches a warm 94. In southern California, Los Angeles will see a high of 84 degrees, with inland areas like Bakersfield getting even hotter at 102. San Diego remains mild at 79 degrees, providing a cooler coastal contrast amid the high temperatures. Be prepared, as a heat wave influences much of the Southwest, making hydration and safety a priority.
Expect a mostly clear and sunny day across the desert Southwest tomorrow, maintaining warm temperatures. Northern California will experience an active weather pattern with several rounds of rain impacting the valley, stretching into early Wednesday. In Southern California, particularly the San Bernardino Valley, anticipate showers with heavy rain leading to slick roads and challenging mountain pass conditions.
The UV index in Salt Lake City will be very high at 9 on both Tuesday and Wednesday, with burn times as short as 15 minutes.
For the 7 Day Outlook in Salt Lake City: Tuesday: Clear skies with a high of 86 degrees and a low of 62 degrees. Wednesday: Clear and getting hotter with a high of 94 degrees, dipping to 69 degrees overnight. Thursday: More clear skies and quite warm with a peak of 102 degrees, cooling to 72 degrees by night. Friday: Expect clear conditions as temperatures reach up to 97 degrees, and it cools down to 61 degrees. Saturday: Clear skies but cooler, with a daytime high of 77 degrees and a nighttime low of 49 degrees. Sunday: Clear weather continues, expect a high of 72 degrees and a low of 49 degrees. Monday: A touch of clouds returns, with partly cloudy skies and temperatures warming to 82 degrees, the low is 56 degrees.