Catch the latest weather trends in Salt Lake City and the Southwest with our detailed forecast. Stay ahead of temperature changes and plan for sunny days or snowy scenes!

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This detailed forecast provides all you need to know about the weather conditions from Salt Lake City to the heart of the Southwest. Learn about temperature fluctuations, UV index warnings, and prepare for any weather with insights into wind changes and nighttime lows. Whether it’s planning a day out in the sun or preparing for cooler temperatures at night, stay informed with our comprehensive weather guide. A mix of weather conditions is depicted on the regional radar for the Southwest. Las Vegas and Phoenix are currently dry with clear skies dominating the area. However, Salt Lake City is seeing some snow, providing a wintry scene for today. Light rain showers are expected around Flagstaff, while Cedar City also experiences modest precipitation to soften the landscape.
Temperatures in Salt Lake City this afternoon will hover around 90 degrees at 4 PM, rising slightly to 92 degrees by 6 PM and staying consistent into the evening. Expect mostly sunny skies transitioning to clear and sunny conditions. Winds are coming from the west at 9 miles per hour, shifting to west-northwest at 8 miles per hour by 8 PM.
In the Southwest today, temperatures are heating up significantly. Phoenix reaches a sizzling 107 degrees, while Las Vegas isn’t far behind at 104. Bakersfield and Fresno both hit the century mark at 100 degrees, showcasing the heat in California’s Central Valley. Meanwhile, San Diego remains cooler at 75 degrees, contrasting sharply with the inland temperatures. San Francisco is even chiller at 64 degrees, underscoring the marine influence keeping it mild.
Tonight, Las Vegas will see a low of 61 degrees, while Los Angeles cools down to 62. Bakersfield is expected to drop to 72, and Fresno will see a low of 65. Further south, San Diego will rest at 63 degrees, with Flagstaff dipping to a chilly 54.
Tomorrow, the Southwest will sizzle with high temperatures. In Phoenix, expect a blistering high of 107 degrees, well above average for this time of year. Las Vegas will also see a hot day, reaching 104 degrees. Bakersfield is closely behind at 100 degrees, while Fresno hits a scorching 101. In contrast, San Francisco will remain significantly cooler at just 63 degrees, a notable drop compared to surrounding areas.
A high-pressure system settles over the desert Southwest tomorrow, bringing mostly sunny skies and dry conditions. However, a developing disturbance leads to isolated thunderstorms in southeastern Arizona in the late afternoon. Look out for gusty winds and brief heavy downpours in those storms. Northern Arizona stays sunny with temperatures in the 80s during the day, cooling to the 60s overnight. Enjoy the clear skies in Southern California, while driving through the region remains smooth without any rain interruptions.
The UV index in Salt Lake City is very high at 9 today, with the sun’s rays strong enough to cause skin damage in about 15 minutes. On Sunday, the UV index remains quite high at 9, so ensure you apply sunscreen, wear protective clothing, and limit direct sun exposure to avoid burns quickly.