This week in Los Angeles and across the Southwest, we’re seeing everything from sunny skies to scorching temperatures. Find out what the weather has in store for your outdoor activities and nightly plans.

Welcome to our detailed coverage of this week’s weather forecast for Los Angeles and the surrounding Southwest region. With a heat wave pressing down, we will take a look at the daily highs and lows, provide UV index warnings, and offer tips for staying comfortable and safe in extreme temperatures. Expect clear skies for most of the week with a slight chance of cooler temperatures and brief showers as a weak front approaches by mid-week. Make sure to prepare for rapid cooling at night and protect yourself during the day from high UV levels. The Southwest region radar is showing a mix of conditions today. Redding is experiencing rain showers moving southeast, while Ely is overcast. Flagstaff and areas surrounding it are under cloud cover with a chance for light rain as temperatures remain cool. Las Vegas and Phoenix enjoy clear skies and dry conditions, perfect for outdoor activities.
Expect a warm and sunny afternoon in Los Angeles, with temperatures climbing to 80 degrees by 4 PM, reaching 81 degrees by 6 PM, and settling at 79 degrees by 8 PM. Winds will be gentle, coming from the south-southwest at around 7 to 8 miles per hour throughout the afternoon. Despite the warm temperatures, the calm and clear skies provide a perfect opportunity for outdoor activities this afternoon.
Today’s regional high temperatures in the Southwest are sizzling. In Phoenix, expect a scorching high of 114 degrees, while Las Vegas will reach 107. Fresno is also heating up with a high of 103 degrees. Bakersfield won’t be far behind at 104 degrees, and San Diego is a bit cooler at 80. The sharp contrast in temperatures highlights the intense heat wave affecting the region today.
Tonight, temperatures will drop significantly across the Southwest. Las Vegas is expected to see a low of 82 degrees, while Flagstaff will cooler at 55. In California, Los Angeles will drop to 60 degrees, with San Francisco hitting a brisk 54. Expect a mild night for San Diego at 62 degrees.
Tomorrow in Phoenix, temperatures soar to a scorching 117 degrees, significantly above average for this time of year. Las Vegas will experience a high of 110 degrees, staying hot but slightly below Phoenix’s extreme readings. In California’s Central Valley, Bakersfield is forecasted to hit 103 degrees, while Fresno is not far behind at 102. Meanwhile, coastal areas like San Diego will see a milder high of 79 degrees, providing a cooler respite from the inland heat. Significant high pressure is dominating the region, intensifying the heat wave across the Southwest.
In the Southwest, expect a calm and sunny day with temperatures gradually rising, perfect for outdoor activities. A slow-moving high-pressure system will keep the skies mostly clear, minimizing the chance of rain. By tomorrow evening, watch for a slight increase in cloud cover as a weak front approaches, bringing cooler overnight temperatures. The clear skies during the day can lead to rapid cooling at night, so consider a light jacket if you’re out late. Stay updated as the front might bring brief showers in certain parts by the mid-week.
Los Angeles will experience very high UV levels with a UV index of 10 both on Sunday and Monday. Sunburn can occur in as little as 12 minutes, so take extra care with sun protection. Apply broad-spectrum sunscreen and wear hats and sunglasses if you’re outdoors!