Arizona greets the morning with cool air pooling across the desert floor, while stars fade above the Tucson Basin. Jackets feel necessary early, but sunlight quickly changes the mood as warmth builds fast.
National Weather Service data shows temperatures rising from the low 40s this morning into the mid-70s this afternoon. Skies stay clear, and light east winds keep conditions calm across the metro. Roads along I-10 and surface streets remain dry, with no weather-related travel concerns.
By late day, the sun works efficiently on pavement and open desert, delivering a noticeably warm feel for late January. The evening cools quickly after sunset, dropping back into the 40s under clear skies.
Sunday brings an even stronger warmup. Afternoon highs approach 79 degrees, pushing Tucson close to early-February heat levels. The air stays dry, and visibility remains excellent for outdoor plans, hiking, and travel.
Clouds increase slightly Sunday night, but rain stays out of the picture. Monday turns mostly sunny again, with highs near 76 degrees. Temperatures remain steady through Tuesday, holding in the mid-70s with cool but comfortable nights.
This stretch reflects a larger western U.S. pattern. Much of the Southwest trends warmer than normal, while colder air remains locked east of the Rockies. The contrast grows as February begins, but southern Arizona stays quiet and dry.
Despite the warmth, winter still shows up overnight. Rapid cooling after sunset can create slick spots where water lingers, especially near shaded areas and irrigation runoff. Dress in layers and plan for chilly mornings.
The desert is offering a preview of spring, but the daily temperature swings remain sharp. Are you adjusting plans for warm afternoons followed by cool desert nights?
Five-Day Outlook for Tucson, Arizona
• Today: Sunny. High near 75°.
• Sunday: Sunny. High near 79°.
• Monday: Mostly sunny. High near 76°.
• Tuesday: Sunny. High near 76°.
• Wednesday: Sunny. High near 78°.
