Tonight’s weather varies widely across the Southwest, from clear skies and intense heat to unexpected rainfall. Discover the temperature shifts and what they mean for your evening plans.

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This evening, the Southwest faces a tapestry of weather scenarios. Salt Lake City enjoys partly cloudy skies with a gentle temperature drop, while the desert cities like Phoenix encounter extreme heat. Meanwhile, Northern California welcomes light rains, offering relief and a shift from the usual dry spell. Dive into detailed nightly forecasts for key cities, safety tips during extreme heat, and how to best enjoy or protect yourself from diverse weather conditions across regions.
The radar image reveals clear skies predominating over Southern California, including areas like Los Angeles and San Diego. However, light rain is sweeping across northern California near Redding and San Francisco, providing some relief to the region. Flagstaff remains under dry conditions, while Phoenix enjoys a clear evening.
For this evening in Salt Lake City, anticipate partly cloudy skies with temperatures easing from 93 degrees at 9 PM to 78 degrees by 1 AM. Winds will shift from northwest at 8 mph to east at 7 mph as the night progresses.
Tonight in Los Angeles, expect a low of 60 degrees. Bakersfield will cool down to 65, while Fresno sees a low of 58. Las Vegas is forecasting a mild night at 80 degrees, but Flagstaff will feel the chill at 50. San Diego is set for a low of 61 degrees.
Tomorrow in Phoenix, expect scorching highs reaching 112 degrees, which is well above average for this time of year. Las Vegas will also see extreme temperatures at 110 degrees, keeping the heatwave going. In California, Bakersfield is set to hit 98 degrees, while Los Angeles will be slightly cooler at 83. Over in Fresno, a high of 95 degrees is anticipated, contributing to a warm trend across the region. San Francisco remains much cooler at 62 degrees.
In the Southwest, expect clear skies and warming temperatures across the desert areas tomorrow. Northern California will see a change as a low-pressure system moves in, bringing multiple rounds of valley rain starting tomorrow. Southern California, including the San Bernardino Valley, will face renewed showers and heavy rainfall, creating tricky driving conditions and slick mountain passes. Watch for these weather shifts, particularly impacting travel plans and outdoor activities.
The UV index in Salt Lake City is very high today, reaching a 9, with a potential burn time of just 15 minutes in direct sunlight. Tomorrow, the UV index remains at 9, so continue to exercise caution by applying sunscreen, wearing a hat, and seeking shade when possible!
For the 7-day forecast in Salt Lake City: Sunday: A warm day ahead with partly cloudy skies, reaching a high of 97 degrees and a low of 66 degrees. Monday: Mostly cloudy skies with temperatures cooling slightly to a high of 93 degrees, and a low of 66 degrees. Tuesday: Enjoy sunny, clear skies with a high of 87 degrees and a cooler low of 61 degrees. Wednesday: Sunshine continues with a high reaching 95 degrees and a low of 68 degrees. Thursday: Expect a clear day with the temperature peaking at a toasty 103 degrees and a low of 70 degrees. Friday: Clear skies will persist with temperatures hitting a high of 99 degrees and a low of 65 degrees. Saturday: The week wraps up with clear conditions and cooler temperatures, a high of 84 degrees and a low of 51 degrees.