Tucson, Arizona – Summer may still be weeks away, but southern Arizona is already warming up. Tucson is headed for 90° heat starting Thursday, with spring sun dominating the forecast through the weekend.
According to the National Weather Service in Tucson, a high of 90°F is expected Thursday, May 1, as calm winds and cloudless skies continue. The heat intensifies Friday and Saturday, with highs reaching 91°F and overnight lows holding steady in the upper 50s. This marks one of the first multi-day stretches of 90-degree temperatures this spring.
Travelers along I-10 near Tucson should stay alert for sun glare and rising road surface temperatures during peak afternoon hours. Officials urge residents to stay hydrated, avoid strenuous outdoor activity during the hottest part of the day, and never leave pets or children in parked vehicles.
The sunny streak offers a welcome break from unsettled spring weather elsewhere in the Southwest, but dry air and rising temps may also increase fire risk in grassy areas around Pima County. Fire crews are monitoring conditions but have not issued active red flag warnings as of Wednesday night.
Looking ahead, Tucson cools slightly into early next week. Sunday’s high falls to 81°F, and Monday dips to 75°F—offering some relief before temperatures rebound by Tuesday.
Extended 5-Day Tucson Forecast:
- Thursday: Sunny, high near 90°F
- Friday: Mostly clear, high 90°F
- Saturday: Sunny, high 91°F
- Sunday: Breezy, high 81°F
- Monday: Sunny, high 75°F
